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DBD Documentation Correction #1

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DBD Documentation Correction #1

wants to merge 7,915 commits into from

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dannyarcher
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correcting the documentation of dbd routines. Specictialy the use of strain length representations rather than apr_size_t*.

wrowe and others added 30 commits January 28, 2011 02:26
@wrowe
This was messed up in the rename to libaprapp-n.lib, solve make install
ac41c5a 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1064429 13f79535-47bb-0310-9956-ffa450edef68
Fix endianness issue in Oracle driver
4afcf6f 
PR 50690 - Patch from Stefan Ruppert


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1065258 13f79535-47bb-0310-9956-ffa450edef68
Axed C++ comments.
905012f 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1068870 13f79535-47bb-0310-9956-ffa450edef68
Disable getpass() for HP-UX platform (PR49496).
f9d4f16 
Reported by rajeshkc yahoo.com.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1070855 13f79535-47bb-0310-9956-ffa450edef68
note that keys are case insensitive
04a20f6 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1072159 13f79535-47bb-0310-9956-ffa450edef68
Add new configure option --enable-allocator-uses-mmap to use mmap
b0bcaf2 
instead of malloc in apr_allocator_alloc(). This greatly reduces 
memory fragmentation with malloc implementations (e.g. glibc) that
don't handle allocationss of a page-size-multiples in an efficient way. 
It also makes apr_allocator_max_free_set() actually have some effect
on such platforms.

The handling of page sizes other than 4k seems like a lot of trouble for a
very small number of platforms, but there does not seem to be a reasonable
way to check this at compile time.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1072165 13f79535-47bb-0310-9956-ffa450edef68
@trawick
add hook function args to the hook probe invocations
04a0939 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1072937 13f79535-47bb-0310-9956-ffa450edef68
apr_file_flush_locked(): Handle short writes
1eb82c7 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1073142 13f79535-47bb-0310-9956-ffa450edef68
@trawick
sync up with hook probe macro changes in r1072937
0ae39a1 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1073198 13f79535-47bb-0310-9956-ffa450edef68
Axed C++ comments and tabs.
22f7294 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1074811 13f79535-47bb-0310-9956-ffa450edef68
Axed C++ comments and tabs.
92727f9 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1074817 13f79535-47bb-0310-9956-ffa450edef68
Makr APR_RING_HEAD pointers volatile to work around an aliasing probl…
a368ffd 
…em that

causes gcc 4.5 to miscompile some brigade related code.

PR 50190


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1074876 13f79535-47bb-0310-9956-ffa450edef68
clarify docs for apr_file_gets
ba69d8b 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1074899 13f79535-47bb-0310-9956-ffa450edef68
@rpluem
* Remove empty [ ] block as it causes an empty "else fi" block that the
d42e8f2 
  shell does not like.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1076133 13f79535-47bb-0310-9956-ffa450edef68
Set eol-style native.
99e00cb 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1076915 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
9a80214 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1076916 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
35152b8 
Part 2.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1077882 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
b2ba1e4 
Part 3.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078199 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
4308870 
Fix a c&p error.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078205 13f79535-47bb-0310-9956-ffa450edef68
@trawick
style changes only -- make it look a lot more like the bulk of APR
1484b6b 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078507 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
b56d4f5 
Part 4.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078559 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
e3df718 
Part 5.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078617 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
6a20209 
Fixed typo.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078619 13f79535-47bb-0310-9956-ffa450edef68
NetWare build overhaul in order to compile on Linux.
26ca37b 
Fix for crappy linker which cant deal with absolute unix
paths for import files.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078631 13f79535-47bb-0310-9956-ffa450edef68
Fixed compilation when APR_HAVE_STRUCT_RLIMIT=0.
b029e03 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078655 13f79535-47bb-0310-9956-ffa450edef68
Fixed NetWare prototype warnings.
2f87a8c 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078658 13f79535-47bb-0310-9956-ffa450edef68
@trawick
fix some existing parameter range checking that had a bad
c88e7fa 
assumption about the size of array entries

add the same range check in another path


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078737 13f79535-47bb-0310-9956-ffa450edef68
@trawick
replace some strcpy() calls with apr_cpystrn()
048c21f 
(no overflow currently)


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078744 13f79535-47bb-0310-9956-ffa450edef68
Fix definition of apr_ino_t to be independent of _FILE_OFFSET_BITS even
a532b64 
if ino_t is 'unsigned int' (this case was not caught by
APR_CHECK_TYPES_COMPATIBLE(... unsigned long...) ).
Also don't limit the special handling to 32bit platforms, as there are
platforms (e.g. kfreebsd-gnu-amd64) where _FILE_OFFSET_BITS influences ino_t
even on 64bit.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078845 13f79535-47bb-0310-9956-ffa450edef68
Added dbm stuff to NetWare build.
79d75b7 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1078963 13f79535-47bb-0310-9956-ffa450edef68
minfrin and others added 24 commits November 28, 2011 22:56
@minfrin
RPM: Ensure we depend correctly on libuuid-devel at build time.
d589f0f 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1207679 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
Remove variables that we assign but never read.
7315c6a 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1207680 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
Suppress a potential warning about an ignored return value.
ccb47c7 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1207704 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
Update the crypto notices for apr_crypto.
34ecbae 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1209490 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
apr_crypto: Clear out buffers that are allocated by us when the pool …
37d3bae 
…from

which the memory was allocated from is cleaned up.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1210524 13f79535-47bb-0310-9956-ffa450edef68
@notroj
* include/: Fix doxygen group for headers from apr-util.
fe19a2b 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1211928 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
apr_crypto: Move the static initialisation of DRIVER_LOAD from
ad6ff3e 
apr_crypto_init() to apr_crypto_get_driver(), so that we don't lose
the parameters.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1211987 13f79535-47bb-0310-9956-ffa450edef68
@mturk
Backport windows crypto build files from apr-util. We still need port…
75dfa1c 
… module build part for Makefile.win

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1212119 13f79535-47bb-0310-9956-ffa450edef68
@trawick
definAtely
d37b11e 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1213382 13f79535-47bb-0310-9956-ffa450edef68
@minfrin
apr_crypto: Crypto library detection runs twice (from main configure …
4feab84 
…logic

as well as from APU_CHECK_CRYPTO). Crypto enablement depends on enablement
of a crypto library, but forgetting to enable a crypto library silently
proceeds without failing.
Submitted by: trawick


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1214516 13f79535-47bb-0310-9956-ffa450edef68
Fix "test" syntax introduced in r1214516.
8a26cb5 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1220395 13f79535-47bb-0310-9956-ffa450edef68
Randomise hashes by providing a seed.
3239eaa 
This is supposed to be a "good enough" approach. Using a crypto quality
function like apr_generate_random_bytes() may be stronger, but this function
may block, so it will be avoided for now.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1231605 13f79535-47bb-0310-9956-ffa450edef68
Do no use srand()/rand() to randomise hashes. Use just "random" data …
e25fc80 
…instead.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1231858 13f79535-47bb-0310-9956-ffa450edef68
Revert hash randomisation for now. Causing regressions in httpd.
ecf3a62 
It is incomplete and possibly incorrect as well.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1232320 13f79535-47bb-0310-9956-ffa450edef68
Clarify docs
9bbe952 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1234474 13f79535-47bb-0310-9956-ffa450edef68
@pgollucci
Fix compile w/ clang and IPv6
6b6bf71 
Submitted by:  Yuri Pankov <yuri.pankov@gmail.com>
               via freebsd ports/164420



git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1235047 13f79535-47bb-0310-9956-ffa450edef68
Randomise hashes by providing a seed.
6541e54 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1236642 13f79535-47bb-0310-9956-ffa450edef68
Revert hash randomisation again. Elegant, but ultimately ineffective.
4cf996a 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1236967 13f79535-47bb-0310-9956-ffa450edef68
Randomise hashes by providing a seed (initial hash value).
f5744a2 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1236970 13f79535-47bb-0310-9956-ffa450edef68
Further improve hash randomisation:
4b09889 
Fix naming of a static function.
Randomise final hash produced by any hash function, using default hash
function and seed.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1237078 13f79535-47bb-0310-9956-ffa450edef68
Fix doxygen typos in apr_buckets.h.
598a57c 
Patch by Hiroaki KAWAI <kawai at apache.org>.
PR: 52521.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1237208 13f79535-47bb-0310-9956-ffa450edef68
Revert r1237078 partially: do not hash the hash.
e26e417 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1237507 13f79535-47bb-0310-9956-ffa450edef68
Reserve a range of USERERR values for HTTPD
760ae57 
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1240472 13f79535-47bb-0310-9956-ffa450edef68
@dannyarcher
DBD Documentation Correction
45410ae 
correcting the documentation of dbd routines. Specictialy the use of strain length representations rather than apr_size_t*.
@asfgit asfgit closed this Aug 16, 2015
asfgit pushed a commit that referenced this pull request Dec 16, 2020
@ylavic
Merge r1883750 from trunk:
2b85c17 
apr_pools: lock parent pool in pool_destroy_debug().

By using apr_pool_clear_debug() instead of pool_clear_debug() in
pool_destroy_debug() we gain the locking provided by the former and thus
protection from concurrent access from apr_pool_walk_tree(), which is
undefined behaviour.

While pool_destroy_debug()=>apr_pool_clear_debug()=>pool_clear_debug() calls
pool_destroy_debug() for all the children pools, this does not cause a deadlock
because apr_pool_clear_debug() locks the parent pool only (not the pool itself)
and thus pool_destroy_debug(pool->child) locks the current pool with no issue.

This fixes use-after-free like the below in httpd (with -D APR_POOL_DEBUG):

=================================================================
==2026856==ERROR: AddressSanitizer: heap-use-after-free on address 0x60600025acf0 at pc 0x7fe738f4c5be bp 0x7fe718598110 sp 0x7fe718598108
READ of size 8 at 0x60600025acf0 thread T51
    #0 0x7fe738f4c5bd in apr_thread_mutex_lock locks/unix/thread_mutex.c:124
    #1 0x7fe738f4e01c in apr_pool_walk_tree memory/unix/apr_pools.c:1505
    #2 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #3 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #4 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #5 0x7fe738f5027c in apr_pool_find memory/unix/apr_pools.c:2291
    #6 0x7fe738f14aba in apr_table_mergen tables/apr_tables.c:746
    #7 0x5578ad926a25 in ap_set_keepalive /home/ylavic/src/apache/httpd/trunk/modules/http/http_protocol.c:309
    #8 0x5578ad93933f in ap_http_header_filter /home/ylavic/src/apache/httpd/trunk/modules/http/http_filters.c:1376
    #9 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #10 0x5578ad9a67f3 in ap_content_length_filter /home/ylavic/src/apache/httpd/trunk/server/protocol.c:2046
    #11 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #12 0x5578ad9405ae in ap_byterange_filter /home/ylavic/src/apache/httpd/trunk/modules/http/byterange_filter.c:463
    #13 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #14 0x7fe7330e398b in ap_headers_output_filter /home/ylavic/src/apache/httpd/trunk/modules/metadata/mod_headers.c:891
    #15 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #16 0x7fe732e32dba in session_output_filter /home/ylavic/src/apache/httpd/trunk/modules/session/mod_session.c:501
    #17 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #18 0x5578ad9c8ee5 in default_handler /home/ylavic/src/apache/httpd/trunk/server/core.c:5188
    #19 0x5578ad9431bb in ap_run_handler /home/ylavic/src/apache/httpd/trunk/server/config.c:170
    #20 0x5578ad944941 in ap_invoke_handler /home/ylavic/src/apache/httpd/trunk/server/config.c:444
    #21 0x5578ad92cc23 in ap_process_async_request /home/ylavic/src/apache/httpd/trunk/modules/http/http_request.c:463
    #22 0x5578ad924d7c in ap_process_http_async_connection /home/ylavic/src/apache/httpd/trunk/modules/http/http_core.c:158
    #23 0x5578ad925410 in ap_process_http_connection /home/ylavic/src/apache/httpd/trunk/modules/http/http_core.c:252
    #24 0x5578ad97e04d in ap_run_process_connection /home/ylavic/src/apache/httpd/trunk/server/connection.c:42
    #25 0x7fe735c7ef79 in process_socket /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1097
    #26 0x7fe735c856a0 in worker_thread /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:2386
    #27 0x7fe738f7cef4 in dummy_worker threadproc/unix/thread.c:145
    #28 0x7fe738e3eea6 in start_thread nptl/pthread_create.c:477
    #29 0x7fe738d6ed4e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfdd4e)

0x60600025acf0 is located 48 bytes inside of 64-byte region [0x60600025acc0,0x60600025ad00)
freed by thread T63 here:
    #0 0x7fe7391ed277 in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x107277)
    #1 0x7fe738f4e9e5 in pool_clear_debug memory/unix/apr_pools.c:1893
    #2 0x7fe738f4ecb2 in pool_destroy_debug memory/unix/apr_pools.c:1956
    #3 0x7fe738f4eeeb in apr_pool_destroy_debug memory/unix/apr_pools.c:2002
    #4 0x5578ada2534b in ap_queue_info_push_pool /home/ylavic/src/apache/httpd/trunk/server/mpm_fdqueue.c:230
    #5 0x7fe735c81412 in process_lingering_close /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1686
    #6 0x7fe735c7f9bc in process_socket /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1255
    #7 0x7fe735c856a0 in worker_thread /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:2386
    #8 0x7fe738f7cef4 in dummy_worker threadproc/unix/thread.c:145
    #9 0x7fe738e3eea6 in start_thread nptl/pthread_create.c:477


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/branches/1.7.x@1883751 13f79535-47bb-0310-9956-ffa450edef68
asfgit pushed a commit that referenced this pull request Dec 16, 2020
@ylavic
apr_pools: lock parent pool in pool_destroy_debug().
94d2e04 
By using apr_pool_clear_debug() instead of pool_clear_debug() in
pool_destroy_debug() we gain the locking provided by the former and thus
protection from concurrent access from apr_pool_walk_tree(), which is
undefined behaviour.

While pool_destroy_debug()=>apr_pool_clear_debug()=>pool_clear_debug() calls
pool_destroy_debug() for all the children pools, this does not cause a deadlock
because apr_pool_clear_debug() locks the parent pool only (not the pool itself)
and thus pool_destroy_debug(pool->child) locks the current pool with no issue.

This fixes use-after-free like the below in httpd (with -D APR_POOL_DEBUG):

=================================================================
==2026856==ERROR: AddressSanitizer: heap-use-after-free on address 0x60600025acf0 at pc 0x7fe738f4c5be bp 0x7fe718598110 sp 0x7fe718598108
READ of size 8 at 0x60600025acf0 thread T51
    #0 0x7fe738f4c5bd in apr_thread_mutex_lock locks/unix/thread_mutex.c:124
    #1 0x7fe738f4e01c in apr_pool_walk_tree memory/unix/apr_pools.c:1505
    #2 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #3 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #4 0x7fe738f4e066 in apr_pool_walk_tree memory/unix/apr_pools.c:1511
    #5 0x7fe738f5027c in apr_pool_find memory/unix/apr_pools.c:2291
    #6 0x7fe738f14aba in apr_table_mergen tables/apr_tables.c:746
    #7 0x5578ad926a25 in ap_set_keepalive /home/ylavic/src/apache/httpd/trunk/modules/http/http_protocol.c:309
    #8 0x5578ad93933f in ap_http_header_filter /home/ylavic/src/apache/httpd/trunk/modules/http/http_filters.c:1376
    #9 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #10 0x5578ad9a67f3 in ap_content_length_filter /home/ylavic/src/apache/httpd/trunk/server/protocol.c:2046
    #11 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #12 0x5578ad9405ae in ap_byterange_filter /home/ylavic/src/apache/httpd/trunk/modules/http/byterange_filter.c:463
    #13 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #14 0x7fe7330e398b in ap_headers_output_filter /home/ylavic/src/apache/httpd/trunk/modules/metadata/mod_headers.c:891
    #15 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #16 0x7fe732e32dba in session_output_filter /home/ylavic/src/apache/httpd/trunk/modules/session/mod_session.c:501
    #17 0x5578ad98f7bd in ap_pass_brigade /home/ylavic/src/apache/httpd/trunk/server/util_filter.c:783
    #18 0x5578ad9c8ee5 in default_handler /home/ylavic/src/apache/httpd/trunk/server/core.c:5188
    #19 0x5578ad9431bb in ap_run_handler /home/ylavic/src/apache/httpd/trunk/server/config.c:170
    #20 0x5578ad944941 in ap_invoke_handler /home/ylavic/src/apache/httpd/trunk/server/config.c:444
    #21 0x5578ad92cc23 in ap_process_async_request /home/ylavic/src/apache/httpd/trunk/modules/http/http_request.c:463
    #22 0x5578ad924d7c in ap_process_http_async_connection /home/ylavic/src/apache/httpd/trunk/modules/http/http_core.c:158
    #23 0x5578ad925410 in ap_process_http_connection /home/ylavic/src/apache/httpd/trunk/modules/http/http_core.c:252
    #24 0x5578ad97e04d in ap_run_process_connection /home/ylavic/src/apache/httpd/trunk/server/connection.c:42
    #25 0x7fe735c7ef79 in process_socket /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1097
    #26 0x7fe735c856a0 in worker_thread /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:2386
    #27 0x7fe738f7cef4 in dummy_worker threadproc/unix/thread.c:145
    #28 0x7fe738e3eea6 in start_thread nptl/pthread_create.c:477
    #29 0x7fe738d6ed4e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfdd4e)

0x60600025acf0 is located 48 bytes inside of 64-byte region [0x60600025acc0,0x60600025ad00)
freed by thread T63 here:
    #0 0x7fe7391ed277 in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x107277)
    #1 0x7fe738f4e9e5 in pool_clear_debug memory/unix/apr_pools.c:1893
    #2 0x7fe738f4ecb2 in pool_destroy_debug memory/unix/apr_pools.c:1956
    #3 0x7fe738f4eeeb in apr_pool_destroy_debug memory/unix/apr_pools.c:2002
    #4 0x5578ada2534b in ap_queue_info_push_pool /home/ylavic/src/apache/httpd/trunk/server/mpm_fdqueue.c:230
    #5 0x7fe735c81412 in process_lingering_close /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1686
    #6 0x7fe735c7f9bc in process_socket /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:1255
    #7 0x7fe735c856a0 in worker_thread /home/ylavic/src/apache/httpd/trunk/server/mpm/event/event.c:2386
    #8 0x7fe738f7cef4 in dummy_worker threadproc/unix/thread.c:145
    #9 0x7fe738e3eea6 in start_thread nptl/pthread_create.c:477


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1883750 13f79535-47bb-0310-9956-ffa450edef68
asfgit pushed a commit that referenced this pull request Sep 10, 2021
@ylavic
apr_crypto: fix potential memory leaks of cprng_stream_ctx_t.
398fc32 
This can happen in cprng_stream_ctx_make() on error paths, or at thread exit
with APR_CRYPTO_PRNG_PER_THREAD like the below.

Direct leak of 64 byte(s) in 8 object(s) allocated from:
    #0 0x7efd954c7628 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x107628)
    #1 0x7efd921db6ca  (<unknown module>)
    #2 0x7efd952937a2 in apr_crypto_prng_create crypto/apr_crypto_prng.c:367
    #3 0x7efd95292c1e in apr_crypto_random_thread_bytes crypto/apr_crypto_prng.c:218
    #4 0x5611dbbb9440 in thread_func /home/yle/src/apache/apr/trunk.ro/test/testcrypto.c:2597
    #5 0x7efd9537dd86 in dummy_worker threadproc/unix/thread.c:148
    #6 0x7efd951efea6 in start_thread nptl/pthread_create.c:477



git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1893201 13f79535-47bb-0310-9956-ffa450edef68
monkburger pushed a commit to monkburger/apr that referenced this pull request Feb 25, 2022
Under certain circumstances, Apache will crash because apr_global_mut…
78567c7 
…ex_child_init() is being passed a NULL

mutex. We've seen this behavior under certain modules, specifically mod_lsapi and a few others under high load/IO wait during graceful restarts:

  #0  apr_proc_mutex_child_init (mutex=0x8, fname=0x0, pool=0x5566e972f128) at locks/unix/proc_mutex.c:1570
  apache#1  0x00002b9a5730cd2c in apr_global_mutex_child_init (mutex=<optimized out>, fname=<optimized out>, pool=<optimized out>) at locks/unix/global_mutex.c:89

With this patch, it shows the following - as well as no more segfaults:

[Fri Feb 25 01:13:58.924341 2022] [:emerg] [pid 92020] (20009)No lock was provided and one was required.: [host test.test] mod_lsapi:  apr_global_mutex_child_init error for pipe mutex
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