Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Support compressed commitlog like Origin #24

Closed
dorlaor opened this issue Jul 17, 2015 · 7 comments
Closed

Support compressed commitlog like Origin #24

dorlaor opened this issue Jul 17, 2015 · 7 comments

Comments

@dorlaor
Copy link
Contributor

dorlaor commented Jul 17, 2015

http://www.datastax.com/dev/blog/updates-to-cassandras-commit-log-in-2-2

@slivne
Copy link
Contributor

slivne commented Jul 18, 2015

I think this is a low prio item ....

We are not compatible in format thus we do mot need to read uncompressed or
compressed

Our format is much more compact
On Jul 17, 2015 11:46 PM, "Dor Laor" notifications@github.com wrote:

http://www.datastax.com/dev/blog/updates-to-cassandras-commit-log-in-2-2


Reply to this email directly or view it on GitHub
#24.

@dorlaor
Copy link
Contributor Author

dorlaor commented Jul 18, 2015

It will be good to compress it ourselves.
I didn't say it's high priority but we do need to track it

On Sun, Jul 19, 2015 at 12:03 AM, slivne notifications@github.com wrote:

I think this is a low prio item ....

We are not compatible in format thus we do mot need to read uncompressed or
compressed

Our format is much more compact
On Jul 17, 2015 11:46 PM, "Dor Laor" notifications@github.com wrote:

http://www.datastax.com/dev/blog/updates-to-cassandras-commit-log-in-2-2


Reply to this email directly or view it on GitHub
#24.


Reply to this email directly or view it on GitHub
#24 (comment)
.

@slivne
Copy link
Contributor

slivne commented Jul 19, 2015

In that case we should drop the crc item
On Jul 19, 2015 12:11 AM, "Dor Laor" notifications@github.com wrote:

It will be good to compress it ourselves.
I didn't say it's high priority but we do need to track it

On Sun, Jul 19, 2015 at 12:03 AM, slivne notifications@github.com wrote:

I think this is a low prio item ....

We are not compatible in format thus we do mot need to read uncompressed
or
compressed

Our format is much more compact
On Jul 17, 2015 11:46 PM, "Dor Laor" notifications@github.com wrote:

http://www.datastax.com/dev/blog/updates-to-cassandras-commit-log-in-2-2


Reply to this email directly or view it on GitHub
#24.


Reply to this email directly or view it on GitHub
<
#24 (comment)

.


Reply to this email directly or view it on GitHub
#24 (comment)
.

@slivne
Copy link
Contributor

slivne commented May 23, 2017

@avikivity, @tzach - I asked @elcallio to look at this while we are designing a bigger item - any comments/reservations about this feature ?

@avikivity
Copy link
Member

I don't like it. Compression is generally slow, and commitlogs are only written, never read. Scylla is designed for high storage/memory ratios, so a lot of storage is likely available. The feature makes the wrong tradeoff - need more expensive cores to save some cheap storage.

It may make sense for network-attached disks that are bandwidth limited (like AWS EBS) or rotating disks, but people generally don't store commit logs there.

@glommer
Copy link
Contributor

glommer commented Jan 10, 2019

I agree this adds very little value. Still, in the belief that this could help with write workloads in slow disks I tried this in the past and saw very little improvements, if any.

I suggest closing this as wontfix.

bhalevy added a commit to bhalevy/scylla that referenced this issue Mar 10, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Mar 11, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Apr 13, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Apr 17, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Apr 29, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Apr 30, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue May 5, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.
Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue May 6, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.

Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

`verifier` was not captured in the scan_dir.then() continuation.
We could add a capture in that lambda, but it's cleaner and safer to let do_with hold on to it instead.

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue May 11, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.

Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

`verifier` was not captured in the scan_dir.then() continuation.
We could add a capture in that lambda, but it's cleaner and safer to let do_with hold on to it instead.

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue May 13, 2020
Rather than using lw_shared_ptr to keep it around, use do_with.

Fixes a use-after-free seen with interrupt_build_process_with_resharding_half_to_max_test
in debug mode:

`verifier` was not captured in the scan_dir.then() continuation.
We could add a capture in that lambda, but it's cleaner and safer to let do_with hold on to it instead.

==406079==ERROR: AddressSanitizer: heap-use-after-free on address 0x603001320ac0 at pc 0x00000777a062 bp 0x7ffdeb77b010 sp 0x7ffdeb77b000
READ of size 8 at 0x603001320ac0 thread T0
    #0 0x777a061 in _M_next /usr/include/c++/9/bits/hashtable_policy.h:283
    scylladb#1 0x779ead7 in _M_incr /usr/include/c++/9/bits/hashtable_policy.h:299
    scylladb#2 0x777bbac in operator++ /usr/include/c++/9/bits/hashtable_policy.h:362
    scylladb#3 0x77f8384 in run_and_dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future-util.hh:568
    scylladb#4 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#5 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#6 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#7 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#8 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#9 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#10 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)
    scylladb#11 0x42b69d in _start (/local/home/bhalevy/.dtest/dtest-q85idok7/test/node1/bin/scylla+0x42b69d)

0x603001320ac0 is located 0 bytes inside of 32-byte region [0x603001320ac0,0x603001320ae0)
freed by thread T0 here:
    #0 0x7fb86520996f in operator delete(void*) (/lib64/libasan.so.5+0x11096f)
    scylladb#1 0x77d1889 in deallocate /usr/include/c++/9/ext/new_allocator.h:128
    scylladb#2 0x77bcbb2 in deallocate /usr/include/c++/9/bits/alloc_traits.h:470
    scylladb#3 0x77bccc5 in _M_deallocate_node_ptr /usr/include/c++/9/bits/hashtable_policy.h:2113
    scylladb#4 0x779dc59 in _M_deallocate_node /usr/include/c++/9/bits/hashtable_policy.h:2103
    scylladb#5 0x77bc8b6 in _M_deallocate_nodes /usr/include/c++/9/bits/hashtable_policy.h:2124
    scylladb#6 0x779d18f in clear /usr/include/c++/9/bits/hashtable.h:2028
    scylladb#7 0x7779b8e in ~_Hashtable /usr/include/c++/9/bits/hashtable.h:1352
    scylladb#8 0x774cfed in ~unordered_map /usr/include/c++/9/bits/unordered_map.h:102
    scylladb#9 0x774d288 in ~shared_ptr_no_esft /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:157
    scylladb#10 0x774d2f1 in dispose /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#11 0x76f9642 in ~lw_shared_ptr /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#12 0x76f9642 in ~<lambda> /local/home/bhalevy/dev/scylla/distributed_loader.cc:743
    scylladb#13 0x771e0a7 in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1167
    scylladb#14 0x777c64c in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:133
    scylladb#15 0x586059 in seastar::noncopyable_function<seastar::future<> ()>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:165
    scylladb#16 0x5867da in seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}::~future_state() /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/future.hh:1192
    scylladb#17 0xab704d in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::~continu
ation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:507
    scylladb#18 0xab7216 in seastar::continuation<seastar::future<>::then_impl<seastar::noncopyable_function<seastar::future<> ()>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> ()>&&)::{lambda()scylladb#1}::operator()() const::{lambda(seastar::future_state<>&&)scylladb#1}>::run_and_
dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:512
    scylladb#19 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#20 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#21 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#22 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#23 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#24 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#25 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

previously allocated by thread T0 here:
    #0 0x7fb8652089d7 in operator new(unsigned long) (/lib64/libasan.so.5+0x10f9d7)
    scylladb#1 0x77d1796 in allocate /usr/include/c++/9/ext/new_allocator.h:114
    scylladb#2 0x77bcab3 in allocate /usr/include/c++/9/bits/alloc_traits.h:444
    scylladb#3 0x779d936 in _M_allocate_node<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable_policy.h:2081
    scylladb#4 0x777a2ed in _M_emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:1638
    scylladb#5 0x774d707 in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/hashtable.h:749
    scylladb#6 0x771ce3e in emplace<long int&, distributed_loader::cleanup_column_family_sstables(seastar::distributed<database>&, seastar::sstring, seastar::sstring, seastar::sstring)::sstable_descriptor> /usr/include/c++/9/bits/unordered_map.h:388
    scylladb#7 0x76f8280 in operator() /local/home/bhalevy/dev/scylla/distributed_loader.cc:732
    scylladb#8 0x774dc5d in _M_invoke /usr/include/c++/9/bits/std_function.h:286
    scylladb#9 0x6cde67b in std::function<seastar::future<> (std::filesystem::__cxx11::path, seastar::directory_entry)>::operator()(std::filesystem::__cxx11::path, seastar::directory_entry) const /usr/include/c++/9/bits/std_function.h:690
    scylladb#10 0x6cd345d in operator() /local/home/bhalevy/dev/scylla/lister.cc:30
    scylladb#11 0x6cd96e0 in apply /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#12 0x6cd9854 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#13 0x6cd9953 in apply<lister::visit(seastar::directory_entry)::<lambda(seastar::directory_entry)>&, seastar::directory_entry&&> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#14 0x6cd6ba9 in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1168
    scylladb#15 0x6cdbac0 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:101
    scylladb#16 0x6ce6178 in seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>::operator()(seastar::directory_entry&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:184
    scylladb#17 0x6ce3033 in seastar::apply_helper<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, std::tuple<seastar::directory_entry>&&, std::integer_sequence<unsigned long, 0ul> >::apply(seastar::noncopyable_function<seastar::future<> (seastar::directory_e
ntry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/apply.hh:36
    scylladb#18 0x6ce3130 in auto seastar::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<seastar::directory_entry>&&) /local/home/bha
levy/dev/scylla/seastar/include/seastar/core/apply.hh:44
    scylladb#19 0x6ce322f in seastar::future<> seastar::futurize<seastar::future<> >::apply<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::directory_entry>(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&, std::tuple<s
eastar::directory_entry>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1650
    scylladb#20 0x6cdf88d in seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lambda()scylladb#1}::operator()()
const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}::operator()(seastar::future_state<seastar::directory_entry>) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1196
    scylladb#21 0x6cea2e0 in seastar::continuation<seastar::future<seastar::directory_entry>::then_impl<seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>, seastar::future<> >(seastar::noncopyable_function<seastar::future<> (seastar::directory_entry&&)>&&)::{lamb
da()scylladb#1}::operator()() const::{lambda(seastar::future_state<seastar::directory_entry>&&)scylladb#1}, seastar::directory_entry>::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:511
    scylladb#22 0x9808883 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2091
    scylladb#23 0x980c831 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2506
    scylladb#24 0x9811c44 in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2666
    scylladb#25 0x967db93 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:199
    scylladb#26 0x967bbb9 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#27 0x475fcb in main /local/home/bhalevy/dev/scylla/main.cc:486
    scylladb#28 0x7fb862d981a2 in __libc_start_main (/lib64/libc.so.6+0x271a2)

SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/9/bits/hashtable_policy.h:283 in _M_next
Shadow bytes around the buggy address:
  0x0c068025c100: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c110: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c130: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c140: fd fd fd fa fa fa 00 00 00 fa fa fa fd fd fd fa
=>0x0c068025c150: fa fa fd fd fd fa fa fa[fd]fd fd fd fa fa fd fd
  0x0c068025c160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c170: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
  0x0c068025c180: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c068025c190: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
  0x0c068025c1a0: fd fd fd fd fa fa fd fd fd fd fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==406079==ABORTING

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Oct 4, 2020
… token_metadata_ptr

Fixes use-after-free seen with putget_with_reloaded_certificates_test:
```
==215==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000a8b180 at pc 0x000012eb5a83 bp 0x7ffd2c16d4c0 sp 0x7ffd2c16d4b0
READ of size 8 at 0x603000a8b180 thread T0
    #0 0x12eb5a82 in std::__uniq_ptr_impl<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::_M_ptr() const /usr/include/c++/10/bits/unique_ptr.h:173
    scylladb#1 0x12ea230d in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::get() const /usr/include/c++/10/bits/unique_ptr.h:422
    scylladb#2 0x12e8d3e8 in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::operator->() const /usr/include/c++/10/bits/unique_ptr.h:416
    scylladb#3 0x12e5d0a2 in locator::token_metadata::ring_range(std::optional<interval_bound<dht::ring_position> > const&, bool) const locator/token_metadata.cc:1712
    scylladb#4 0x112d0126 in service::query_ranges_to_vnodes_generator::process_one_range(unsigned long, std::vector<nonwrapping_interval<dht::ring_position>, std::allocator<nonwrapping_interval<dht::ring_position> > >&) service/storage_proxy.cc:4658
    scylladb#5 0x112cf3c5 in service::query_ranges_to_vnodes_generator::operator()(unsigned long) service/storage_proxy.cc:4616
    scylladb#6 0x112b2261 in service::storage_proxy::query_partition_key_range_concurrent(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >, std::allocator<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, unsigned long, unsigned int, std::unordered_map<nonwrapping_interval<dht::token>, std::vector<utils::UUID, std::allocator<utils::UUID> >, std::hash<nonwrapping_interval<dht::token> >, std::equal_to<nonwrapping_interval<dht::token> >, std::allocator<std::pair<nonwrapping_interval<dht::token> const, std::vector<utils::UUID, std::allocator<utils::UUID> > > > >, service_permit) service/storage_proxy.cc:4023
    scylladb#7 0x112b094e in operator() service/storage_proxy.cc:4160
    scylladb#8 0x1139c8bb in invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2088
    scylladb#9 0x1136625b in futurize_invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2119
    scylladb#10 0x11366372 in operator()<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1480
    scylladb#11 0x1139cc3b in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#12 0x116f4944 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::operator()(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#13 0x116b3397 in seastar::future<service::query_partition_key_range_concurrent_result> std::__invoke_impl<seastar::future<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(std::__invoke_other, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:60
    scylladb#14 0x1165c3a6 in std::__invoke_result<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::type std::__invoke<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:96
    scylladb#15 0x115e6542 in decltype(auto) std::__apply_impl<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >, 0ul>(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, std::integer_sequence<unsigned long, 0ul>) /usr/include/c++/10/tuple:1724
    scylladb#16 0x115e6663 in decltype(auto) std::apply<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&) /usr/include/c++/10/tuple:1736
    scylladb#17 0x115e63f9 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1530
    scylladb#18 0x1165c4b9 in void seastar::futurize<seastar::future<service::query_partition_key_range_concurrent_result> >::satisfy_with_result_of<seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}>(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2073
    scylladb#19 0x115e61f5 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1528
    scylladb#20 0x1176e9cc in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:746
    scylladb#21 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#22 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#23 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#24 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#25 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#26 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#27 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)
    scylladb#28 0xd67c9ed in _start (/local/home/bhalevy/.dtest/dtest-o0qoqmkr/test/node3/bin/scylla+0xd67c9ed)

0x603000a8b180 is located 16 bytes inside of 24-byte region [0x603000a8b170,0x603000a8b188)
freed by thread T0 here:
    #0 0x7f8d92a190cf in operator delete(void*, unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb30cf)
    scylladb#1 0xd7ebe54 in seastar::internal::lw_shared_ptr_accessors_no_esft<locator::token_metadata>::dispose(seastar::lw_shared_ptr_counter_base*) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#2 0x112b155d in seastar::lw_shared_ptr<locator::token_metadata const>::~lw_shared_ptr() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#3 0x112b155d in ~<lambda> service/storage_proxy.cc:4137
    scylladb#4 0x1132e92d in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1479
    scylladb#5 0x1139cc91 in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:148
    scylladb#6 0x11565673 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:181
    scylladb#7 0x1176e783 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::~continuation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:729
    scylladb#8 0x1176ea06 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:750
    scylladb#9 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#10 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#11 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#12 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#13 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#14 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#15 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)

previously allocated by thread T0 here:
    #0 0x7f8d92a18067 in operator new(unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb2067)
    scylladb#1 0x13cf7132 in seastar::lw_shared_ptr<locator::token_metadata> seastar::lw_shared_ptr<locator::token_metadata>::make<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:266
    scylladb#2 0x13cc3bfa in seastar::lw_shared_ptr<locator::token_metadata> seastar::make_lw_shared<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:422
    scylladb#3 0x13ca3007 in seastar::lw_shared_ptr<locator::token_metadata> locator::make_token_metadata_ptr<locator::token_metadata>(locator::token_metadata) locator/token_metadata.hh:338
    scylladb#4 0x13c9bdd4 in locator::shared_token_metadata::clone() const locator/token_metadata.hh:358
    scylladb#5 0x13c9c18a in service::storage_service::get_mutable_token_metadata_ptr() service/storage_service.hh:184
    scylladb#6 0x13a5a445 in service::storage_service::handle_state_normal(gms::inet_address) service/storage_service.cc:1129
    scylladb#7 0x13a6371c in service::storage_service::on_change(gms::inet_address, gms::application_state, gms::versioned_value const&) service/storage_service.cc:1421
    scylladb#8 0x12a86269 in operator() gms/gossiper.cc:1639
    scylladb#9 0x12ad3eea in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#10 0x12be2aff in seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>::operator()(seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#11 0x12bb8e98 in atomic_vector<seastar::shared_ptr<gms::i_endpoint_state_change_subscriber> >::for_each(seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>) utils/atomic_vector.hh:62
    scylladb#12 0x12a8662b in gms::gossiper::do_on_change_notifications(gms::inet_address, gms::application_state const&, gms::versioned_value const&) gms/gossiper.cc:1638
    scylladb#13 0x12a9387c in operator() gms/gossiper.cc:1978
    scylladb#14 0x12b49b20 in __invoke_impl<void, gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:60
    scylladb#15 0x12b21fd6 in __invoke<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:95
    scylladb#16 0x12b02865 in __apply_impl<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1723
    scylladb#17 0x12b028d8 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1734
    scylladb#18 0x12b02967 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2052
    scylladb#19 0x12ad866a in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/thread.hh:258
    scylladb#20 0x12b609c2 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:116
    scylladb#21 0xdfabb5f in seastar::noncopyable_function<void ()>::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#22 0x16e21bb4 in seastar::thread_context::main() /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:297
    scylladb#23 0x16e2190f in seastar::thread_context::s_main(int, int) /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:275
    scylladb#24 0x7f8d9060322f  (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x5222f)
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Oct 4, 2020
… token_metadata_ptr

Fixes use-after-free seen with putget_with_reloaded_certificates_test:
```
==215==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000a8b180 at pc 0x000012eb5a83 bp 0x7ffd2c16d4c0 sp 0x7ffd2c16d4b0
READ of size 8 at 0x603000a8b180 thread T0
    #0 0x12eb5a82 in std::__uniq_ptr_impl<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::_M_ptr() const /usr/include/c++/10/bits/unique_ptr.h:173
    scylladb#1 0x12ea230d in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::get() const /usr/include/c++/10/bits/unique_ptr.h:422
    scylladb#2 0x12e8d3e8 in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::operator->() const /usr/include/c++/10/bits/unique_ptr.h:416
    scylladb#3 0x12e5d0a2 in locator::token_metadata::ring_range(std::optional<interval_bound<dht::ring_position> > const&, bool) const locator/token_metadata.cc:1712
    scylladb#4 0x112d0126 in service::query_ranges_to_vnodes_generator::process_one_range(unsigned long, std::vector<nonwrapping_interval<dht::ring_position>, std::allocator<nonwrapping_interval<dht::ring_position> > >&) service/storage_proxy.cc:4658
    scylladb#5 0x112cf3c5 in service::query_ranges_to_vnodes_generator::operator()(unsigned long) service/storage_proxy.cc:4616
    scylladb#6 0x112b2261 in service::storage_proxy::query_partition_key_range_concurrent(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >, std::allocator<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, unsigned long, unsigned int, std::unordered_map<nonwrapping_interval<dht::token>, std::vector<utils::UUID, std::allocator<utils::UUID> >, std::hash<nonwrapping_interval<dht::token> >, std::equal_to<nonwrapping_interval<dht::token> >, std::allocator<std::pair<nonwrapping_interval<dht::token> const, std::vector<utils::UUID, std::allocator<utils::UUID> > > > >, service_permit) service/storage_proxy.cc:4023
    scylladb#7 0x112b094e in operator() service/storage_proxy.cc:4160
    scylladb#8 0x1139c8bb in invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2088
    scylladb#9 0x1136625b in futurize_invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2119
    scylladb#10 0x11366372 in operator()<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1480
    scylladb#11 0x1139cc3b in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#12 0x116f4944 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::operator()(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#13 0x116b3397 in seastar::future<service::query_partition_key_range_concurrent_result> std::__invoke_impl<seastar::future<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(std::__invoke_other, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:60
    scylladb#14 0x1165c3a6 in std::__invoke_result<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::type std::__invoke<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:96
    scylladb#15 0x115e6542 in decltype(auto) std::__apply_impl<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >, 0ul>(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, std::integer_sequence<unsigned long, 0ul>) /usr/include/c++/10/tuple:1724
    scylladb#16 0x115e6663 in decltype(auto) std::apply<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&) /usr/include/c++/10/tuple:1736
    scylladb#17 0x115e63f9 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1530
    scylladb#18 0x1165c4b9 in void seastar::futurize<seastar::future<service::query_partition_key_range_concurrent_result> >::satisfy_with_result_of<seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}>(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2073
    scylladb#19 0x115e61f5 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1528
    scylladb#20 0x1176e9cc in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:746
    scylladb#21 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#22 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#23 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#24 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#25 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#26 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#27 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)
    scylladb#28 0xd67c9ed in _start (/local/home/bhalevy/.dtest/dtest-o0qoqmkr/test/node3/bin/scylla+0xd67c9ed)

0x603000a8b180 is located 16 bytes inside of 24-byte region [0x603000a8b170,0x603000a8b188)
freed by thread T0 here:
    #0 0x7f8d92a190cf in operator delete(void*, unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb30cf)
    scylladb#1 0xd7ebe54 in seastar::internal::lw_shared_ptr_accessors_no_esft<locator::token_metadata>::dispose(seastar::lw_shared_ptr_counter_base*) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#2 0x112b155d in seastar::lw_shared_ptr<locator::token_metadata const>::~lw_shared_ptr() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#3 0x112b155d in ~<lambda> service/storage_proxy.cc:4137
    scylladb#4 0x1132e92d in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1479
    scylladb#5 0x1139cc91 in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:148
    scylladb#6 0x11565673 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:181
    scylladb#7 0x1176e783 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::~continuation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:729
    scylladb#8 0x1176ea06 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:750
    scylladb#9 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#10 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#11 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#12 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#13 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#14 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#15 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)

previously allocated by thread T0 here:
    #0 0x7f8d92a18067 in operator new(unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb2067)
    scylladb#1 0x13cf7132 in seastar::lw_shared_ptr<locator::token_metadata> seastar::lw_shared_ptr<locator::token_metadata>::make<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:266
    scylladb#2 0x13cc3bfa in seastar::lw_shared_ptr<locator::token_metadata> seastar::make_lw_shared<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:422
    scylladb#3 0x13ca3007 in seastar::lw_shared_ptr<locator::token_metadata> locator::make_token_metadata_ptr<locator::token_metadata>(locator::token_metadata) locator/token_metadata.hh:338
    scylladb#4 0x13c9bdd4 in locator::shared_token_metadata::clone() const locator/token_metadata.hh:358
    scylladb#5 0x13c9c18a in service::storage_service::get_mutable_token_metadata_ptr() service/storage_service.hh:184
    scylladb#6 0x13a5a445 in service::storage_service::handle_state_normal(gms::inet_address) service/storage_service.cc:1129
    scylladb#7 0x13a6371c in service::storage_service::on_change(gms::inet_address, gms::application_state, gms::versioned_value const&) service/storage_service.cc:1421
    scylladb#8 0x12a86269 in operator() gms/gossiper.cc:1639
    scylladb#9 0x12ad3eea in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#10 0x12be2aff in seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>::operator()(seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#11 0x12bb8e98 in atomic_vector<seastar::shared_ptr<gms::i_endpoint_state_change_subscriber> >::for_each(seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>) utils/atomic_vector.hh:62
    scylladb#12 0x12a8662b in gms::gossiper::do_on_change_notifications(gms::inet_address, gms::application_state const&, gms::versioned_value const&) gms/gossiper.cc:1638
    scylladb#13 0x12a9387c in operator() gms/gossiper.cc:1978
    scylladb#14 0x12b49b20 in __invoke_impl<void, gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:60
    scylladb#15 0x12b21fd6 in __invoke<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:95
    scylladb#16 0x12b02865 in __apply_impl<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1723
    scylladb#17 0x12b028d8 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1734
    scylladb#18 0x12b02967 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2052
    scylladb#19 0x12ad866a in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/thread.hh:258
    scylladb#20 0x12b609c2 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:116
    scylladb#21 0xdfabb5f in seastar::noncopyable_function<void ()>::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#22 0x16e21bb4 in seastar::thread_context::main() /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:297
    scylladb#23 0x16e2190f in seastar::thread_context::s_main(int, int) /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:275
    scylladb#24 0x7f8d9060322f  (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x5222f)
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Oct 22, 2020
… token_metadata_ptr

Fixes use-after-free seen with putget_with_reloaded_certificates_test:
```
==215==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000a8b180 at pc 0x000012eb5a83 bp 0x7ffd2c16d4c0 sp 0x7ffd2c16d4b0
READ of size 8 at 0x603000a8b180 thread T0
    #0 0x12eb5a82 in std::__uniq_ptr_impl<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::_M_ptr() const /usr/include/c++/10/bits/unique_ptr.h:173
    scylladb#1 0x12ea230d in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::get() const /usr/include/c++/10/bits/unique_ptr.h:422
    scylladb#2 0x12e8d3e8 in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::operator->() const /usr/include/c++/10/bits/unique_ptr.h:416
    scylladb#3 0x12e5d0a2 in locator::token_metadata::ring_range(std::optional<interval_bound<dht::ring_position> > const&, bool) const locator/token_metadata.cc:1712
    scylladb#4 0x112d0126 in service::query_ranges_to_vnodes_generator::process_one_range(unsigned long, std::vector<nonwrapping_interval<dht::ring_position>, std::allocator<nonwrapping_interval<dht::ring_position> > >&) service/storage_proxy.cc:4658
    scylladb#5 0x112cf3c5 in service::query_ranges_to_vnodes_generator::operator()(unsigned long) service/storage_proxy.cc:4616
    scylladb#6 0x112b2261 in service::storage_proxy::query_partition_key_range_concurrent(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >, std::allocator<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, unsigned long, unsigned int, std::unordered_map<nonwrapping_interval<dht::token>, std::vector<utils::UUID, std::allocator<utils::UUID> >, std::hash<nonwrapping_interval<dht::token> >, std::equal_to<nonwrapping_interval<dht::token> >, std::allocator<std::pair<nonwrapping_interval<dht::token> const, std::vector<utils::UUID, std::allocator<utils::UUID> > > > >, service_permit) service/storage_proxy.cc:4023
    scylladb#7 0x112b094e in operator() service/storage_proxy.cc:4160
    scylladb#8 0x1139c8bb in invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2088
    scylladb#9 0x1136625b in futurize_invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2119
    scylladb#10 0x11366372 in operator()<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1480
    scylladb#11 0x1139cc3b in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#12 0x116f4944 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::operator()(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#13 0x116b3397 in seastar::future<service::query_partition_key_range_concurrent_result> std::__invoke_impl<seastar::future<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(std::__invoke_other, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:60
    scylladb#14 0x1165c3a6 in std::__invoke_result<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::type std::__invoke<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:96
    scylladb#15 0x115e6542 in decltype(auto) std::__apply_impl<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >, 0ul>(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, std::integer_sequence<unsigned long, 0ul>) /usr/include/c++/10/tuple:1724
    scylladb#16 0x115e6663 in decltype(auto) std::apply<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&) /usr/include/c++/10/tuple:1736
    scylladb#17 0x115e63f9 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1530
    scylladb#18 0x1165c4b9 in void seastar::futurize<seastar::future<service::query_partition_key_range_concurrent_result> >::satisfy_with_result_of<seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}>(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2073
    scylladb#19 0x115e61f5 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1528
    scylladb#20 0x1176e9cc in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:746
    scylladb#21 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#22 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#23 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#24 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#25 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#26 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#27 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)
    scylladb#28 0xd67c9ed in _start (/local/home/bhalevy/.dtest/dtest-o0qoqmkr/test/node3/bin/scylla+0xd67c9ed)

0x603000a8b180 is located 16 bytes inside of 24-byte region [0x603000a8b170,0x603000a8b188)
freed by thread T0 here:
    #0 0x7f8d92a190cf in operator delete(void*, unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb30cf)
    scylladb#1 0xd7ebe54 in seastar::internal::lw_shared_ptr_accessors_no_esft<locator::token_metadata>::dispose(seastar::lw_shared_ptr_counter_base*) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#2 0x112b155d in seastar::lw_shared_ptr<locator::token_metadata const>::~lw_shared_ptr() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#3 0x112b155d in ~<lambda> service/storage_proxy.cc:4137
    scylladb#4 0x1132e92d in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1479
    scylladb#5 0x1139cc91 in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:148
    scylladb#6 0x11565673 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:181
    scylladb#7 0x1176e783 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::~continuation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:729
    scylladb#8 0x1176ea06 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:750
    scylladb#9 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#10 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#11 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#12 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#13 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#14 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#15 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)

previously allocated by thread T0 here:
    #0 0x7f8d92a18067 in operator new(unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb2067)
    scylladb#1 0x13cf7132 in seastar::lw_shared_ptr<locator::token_metadata> seastar::lw_shared_ptr<locator::token_metadata>::make<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:266
    scylladb#2 0x13cc3bfa in seastar::lw_shared_ptr<locator::token_metadata> seastar::make_lw_shared<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:422
    scylladb#3 0x13ca3007 in seastar::lw_shared_ptr<locator::token_metadata> locator::make_token_metadata_ptr<locator::token_metadata>(locator::token_metadata) locator/token_metadata.hh:338
    scylladb#4 0x13c9bdd4 in locator::shared_token_metadata::clone() const locator/token_metadata.hh:358
    scylladb#5 0x13c9c18a in service::storage_service::get_mutable_token_metadata_ptr() service/storage_service.hh:184
    scylladb#6 0x13a5a445 in service::storage_service::handle_state_normal(gms::inet_address) service/storage_service.cc:1129
    scylladb#7 0x13a6371c in service::storage_service::on_change(gms::inet_address, gms::application_state, gms::versioned_value const&) service/storage_service.cc:1421
    scylladb#8 0x12a86269 in operator() gms/gossiper.cc:1639
    scylladb#9 0x12ad3eea in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#10 0x12be2aff in seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>::operator()(seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#11 0x12bb8e98 in atomic_vector<seastar::shared_ptr<gms::i_endpoint_state_change_subscriber> >::for_each(seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>) utils/atomic_vector.hh:62
    scylladb#12 0x12a8662b in gms::gossiper::do_on_change_notifications(gms::inet_address, gms::application_state const&, gms::versioned_value const&) gms/gossiper.cc:1638
    scylladb#13 0x12a9387c in operator() gms/gossiper.cc:1978
    scylladb#14 0x12b49b20 in __invoke_impl<void, gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:60
    scylladb#15 0x12b21fd6 in __invoke<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:95
    scylladb#16 0x12b02865 in __apply_impl<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1723
    scylladb#17 0x12b028d8 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1734
    scylladb#18 0x12b02967 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2052
    scylladb#19 0x12ad866a in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/thread.hh:258
    scylladb#20 0x12b609c2 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:116
    scylladb#21 0xdfabb5f in seastar::noncopyable_function<void ()>::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#22 0x16e21bb4 in seastar::thread_context::main() /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:297
    scylladb#23 0x16e2190f in seastar::thread_context::s_main(int, int) /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:275
    scylladb#24 0x7f8d9060322f  (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x5222f)
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
bhalevy added a commit to bhalevy/scylla that referenced this issue Nov 11, 2020
… token_metadata_ptr

Fixes use-after-free seen with putget_with_reloaded_certificates_test:
```
==215==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000a8b180 at pc 0x000012eb5a83 bp 0x7ffd2c16d4c0 sp 0x7ffd2c16d4b0
READ of size 8 at 0x603000a8b180 thread T0
    #0 0x12eb5a82 in std::__uniq_ptr_impl<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::_M_ptr() const /usr/include/c++/10/bits/unique_ptr.h:173
    scylladb#1 0x12ea230d in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::get() const /usr/include/c++/10/bits/unique_ptr.h:422
    scylladb#2 0x12e8d3e8 in std::unique_ptr<locator::token_metadata_impl, std::default_delete<locator::token_metadata_impl> >::operator->() const /usr/include/c++/10/bits/unique_ptr.h:416
    scylladb#3 0x12e5d0a2 in locator::token_metadata::ring_range(std::optional<interval_bound<dht::ring_position> > const&, bool) const locator/token_metadata.cc:1712
    scylladb#4 0x112d0126 in service::query_ranges_to_vnodes_generator::process_one_range(unsigned long, std::vector<nonwrapping_interval<dht::ring_position>, std::allocator<nonwrapping_interval<dht::ring_position> > >&) service/storage_proxy.cc:4658
    scylladb#5 0x112cf3c5 in service::query_ranges_to_vnodes_generator::operator()(unsigned long) service/storage_proxy.cc:4616
    scylladb#6 0x112b2261 in service::storage_proxy::query_partition_key_range_concurrent(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >, std::allocator<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, unsigned long, unsigned int, std::unordered_map<nonwrapping_interval<dht::token>, std::vector<utils::UUID, std::allocator<utils::UUID> >, std::hash<nonwrapping_interval<dht::token> >, std::equal_to<nonwrapping_interval<dht::token> >, std::allocator<std::pair<nonwrapping_interval<dht::token> const, std::vector<utils::UUID, std::allocator<utils::UUID> > > > >, service_permit) service/storage_proxy.cc:4023
    scylladb#7 0x112b094e in operator() service/storage_proxy.cc:4160
    scylladb#8 0x1139c8bb in invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2088
    scylladb#9 0x1136625b in futurize_invoke<service::storage_proxy::query_partition_key_range_concurrent(seastar::lowres_clock::time_point, std::vector<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, seastar::lw_shared_ptr<query::read_command>, db::consistency_level, service::query_ranges_to_vnodes_generator&&, int, tracing::trace_state_ptr, uint64_t, uint32_t, service::replicas_per_token_range, service_permit)::<lambda(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2119
    scylladb#10 0x11366372 in operator()<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1480
    scylladb#11 0x1139cc3b in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#12 0x116f4944 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::operator()(seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#13 0x116b3397 in seastar::future<service::query_partition_key_range_concurrent_result> std::__invoke_impl<seastar::future<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(std::__invoke_other, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:60
    scylladb#14 0x1165c3a6 in std::__invoke_result<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::type std::__invoke<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&) /usr/include/c++/10/bits/invoke.h:96
    scylladb#15 0x115e6542 in decltype(auto) std::__apply_impl<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >, 0ul>(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&, std::integer_sequence<unsigned long, 0ul>) /usr/include/c++/10/tuple:1724
    scylladb#16 0x115e6663 in decltype(auto) std::apply<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >&&) /usr/include/c++/10/tuple:1736
    scylladb#17 0x115e63f9 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1530
    scylladb#18 0x1165c4b9 in void seastar::futurize<seastar::future<service::query_partition_key_range_concurrent_result> >::satisfy_with_result_of<seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const::{lambda()scylladb#1}>(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2073
    scylladb#19 0x115e61f5 in seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}::operator()(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1528
    scylladb#20 0x1176e9cc in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:746
    scylladb#21 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#22 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#23 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#24 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#25 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#26 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#27 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)
    scylladb#28 0xd67c9ed in _start (/local/home/bhalevy/.dtest/dtest-o0qoqmkr/test/node3/bin/scylla+0xd67c9ed)

0x603000a8b180 is located 16 bytes inside of 24-byte region [0x603000a8b170,0x603000a8b188)
freed by thread T0 here:
    #0 0x7f8d92a190cf in operator delete(void*, unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb30cf)
    scylladb#1 0xd7ebe54 in seastar::internal::lw_shared_ptr_accessors_no_esft<locator::token_metadata>::dispose(seastar::lw_shared_ptr_counter_base*) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:213
    scylladb#2 0x112b155d in seastar::lw_shared_ptr<locator::token_metadata const>::~lw_shared_ptr() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:300
    scylladb#3 0x112b155d in ~<lambda> service/storage_proxy.cc:4137
    scylladb#4 0x1132e92d in ~<lambda> /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:1479
    scylladb#5 0x1139cc91 in destroy /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:148
    scylladb#6 0x11565673 in seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>::~noncopyable_function() /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:181
    scylladb#7 0x1176e783 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::~continuation() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:729
    scylladb#8 0x1176ea06 in seastar::continuation<seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>, seastar::future<service::query_partition_key_range_concurrent_result> >(seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&&)::{lambda(seastar::internal::promise_base_with_type<service::query_partition_key_range_concurrent_result>&&, seastar::noncopyable_function<seastar::future<service::query_partition_key_range_concurrent_result> (seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> >&&)>&, seastar::future_state<std::tuple<seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > > >&&)scylladb#1}, seastar::foreign_ptr<seastar::lw_shared_ptr<query::result> > >::run_and_dispose() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:750
    scylladb#9 0x16a9a455 in seastar::reactor::run_tasks(seastar::reactor::task_queue&) /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2196
    scylladb#10 0x16a9e691 in seastar::reactor::run_some_tasks() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2575
    scylladb#11 0x16aa390e in seastar::reactor::run() /local/home/bhalevy/dev/scylla/seastar/src/core/reactor.cc:2730
    scylladb#12 0x168ae4f7 in seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:207
    scylladb#13 0x168ac541 in seastar::app_template::run(int, char**, std::function<seastar::future<int> ()>&&) /local/home/bhalevy/dev/scylla/seastar/src/core/app-template.cc:115
    scylladb#14 0xd6cd3c4 in main /local/home/bhalevy/dev/scylla/main.cc:504
    scylladb#15 0x7f8d905d8041 in __libc_start_main (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x27041)

previously allocated by thread T0 here:
    #0 0x7f8d92a18067 in operator new(unsigned long) (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libasan.so.6+0xb2067)
    scylladb#1 0x13cf7132 in seastar::lw_shared_ptr<locator::token_metadata> seastar::lw_shared_ptr<locator::token_metadata>::make<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:266
    scylladb#2 0x13cc3bfa in seastar::lw_shared_ptr<locator::token_metadata> seastar::make_lw_shared<locator::token_metadata>(locator::token_metadata&&) /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/shared_ptr.hh:422
    scylladb#3 0x13ca3007 in seastar::lw_shared_ptr<locator::token_metadata> locator::make_token_metadata_ptr<locator::token_metadata>(locator::token_metadata) locator/token_metadata.hh:338
    scylladb#4 0x13c9bdd4 in locator::shared_token_metadata::clone() const locator/token_metadata.hh:358
    scylladb#5 0x13c9c18a in service::storage_service::get_mutable_token_metadata_ptr() service/storage_service.hh:184
    scylladb#6 0x13a5a445 in service::storage_service::handle_state_normal(gms::inet_address) service/storage_service.cc:1129
    scylladb#7 0x13a6371c in service::storage_service::on_change(gms::inet_address, gms::application_state, gms::versioned_value const&) service/storage_service.cc:1421
    scylladb#8 0x12a86269 in operator() gms/gossiper.cc:1639
    scylladb#9 0x12ad3eea in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:145
    scylladb#10 0x12be2aff in seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>::operator()(seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>) const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#11 0x12bb8e98 in atomic_vector<seastar::shared_ptr<gms::i_endpoint_state_change_subscriber> >::for_each(seastar::noncopyable_function<void (seastar::shared_ptr<gms::i_endpoint_state_change_subscriber>)>) utils/atomic_vector.hh:62
    scylladb#12 0x12a8662b in gms::gossiper::do_on_change_notifications(gms::inet_address, gms::application_state const&, gms::versioned_value const&) gms/gossiper.cc:1638
    scylladb#13 0x12a9387c in operator() gms/gossiper.cc:1978
    scylladb#14 0x12b49b20 in __invoke_impl<void, gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:60
    scylladb#15 0x12b21fd6 in __invoke<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /usr/include/c++/10/bits/invoke.h:95
    scylladb#16 0x12b02865 in __apply_impl<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1723
    scylladb#17 0x12b028d8 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()>, std::tuple<> > /usr/include/c++/10/tuple:1734
    scylladb#18 0x12b02967 in apply<gms::gossiper::add_local_application_state(std::__cxx11::list<std::pair<gms::application_state, gms::versioned_value> >)::<lambda(gms::gossiper&)> mutable::<lambda()> > /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/future.hh:2052
    scylladb#19 0x12ad866a in operator() /local/home/bhalevy/dev/scylla/seastar/include/seastar/core/thread.hh:258
    scylladb#20 0x12b609c2 in call /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:116
    scylladb#21 0xdfabb5f in seastar::noncopyable_function<void ()>::operator()() const /local/home/bhalevy/dev/scylla/seastar/include/seastar/util/noncopyable_function.hh:201
    scylladb#22 0x16e21bb4 in seastar::thread_context::main() /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:297
    scylladb#23 0x16e2190f in seastar::thread_context::s_main(int, int) /local/home/bhalevy/dev/scylla/seastar/src/core/thread.cc:275
    scylladb#24 0x7f8d9060322f  (/local/home/bhalevy/dev/scylla/build/debug/dynamic_libs/libc.so.6+0x5222f)
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
@raphaelsc
Copy link
Member

given Glauber and @avikivity comments, I am closing this issue... added wontfix tag.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

No branches or pull requests

6 participants