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CRIU — как маленький open-source проект меняет жизнь большой компании #12

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belonesox opened this issue Jul 31, 2015 · 1 comment

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@belonesox
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Pls, look and review, if something is not OK.

https://vimeo.com/130297663

@xemul
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xemul commented Aug 3, 2015

Around 10th minute sound becomes lower. Everything else is perfect, thanks :)

@xemul xemul closed this as completed Aug 5, 2015
criupatchwork pushed a commit to criupatchwork/criu that referenced this issue Jun 2, 2016
It can be dead-lokced:
 #0  0x00007fafbf49f6ac in __lll_lock_wait_private () from /lib64/libc.so.6
 #1  0x00007fafbf44af1c in _L_lock_2460 () from /lib64/libc.so.6
 #2  0x00007fafbf44ad57 in __tz_convert () from /lib64/libc.so.6
 checkpoint-restore#3  0x00000000004022e2 in test_msg (format=0x404508 "Receive signal %d\n") at msg.c:51
 checkpoint-restore#4  <signal handler called>
 checkpoint-restore#5  0x00007fafbf3f2483 in __GI__IO_vfscanf () from /lib64/libc.so.6
 checkpoint-restore#6  0x00007fafbf408f27 in vsscanf () from /lib64/libc.so.6
 checkpoint-restore#7  0x00007fafbf4032f7 in sscanf () from /lib64/libc.so.6
 checkpoint-restore#8  0x00007fafbf449ba6 in __tzset_parse_tz () from /lib64/libc.so.6
 checkpoint-restore#9  0x00007fafbf44c4cb in __tzfile_compute () from /lib64/libc.so.6
 checkpoint-restore#10 0x00007fafbf44ae17 in __tz_convert () from /lib64/libc.so.6
 checkpoint-restore#11 0x00000000004022e2 in test_msg (format=format@entry=0x40458c "PASS\n") at msg.c:51
 checkpoint-restore#12 0x0000000000401ceb in main (argc=<optimized out>, argv=<optimized out>) at ptrace_sig.c:172

https://jira.sw.ru/browse/PSBM-47772

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Tested-by: Cyrill Gorcunov <gorcunov@openvz.org>
xemul pushed a commit that referenced this issue Jun 7, 2016
It can be dead-lokced:
 #0  0x00007fafbf49f6ac in __lll_lock_wait_private () from /lib64/libc.so.6
 #1  0x00007fafbf44af1c in _L_lock_2460 () from /lib64/libc.so.6
 #2  0x00007fafbf44ad57 in __tz_convert () from /lib64/libc.so.6
 #3  0x00000000004022e2 in test_msg (format=0x404508 "Receive signal %d\n") at msg.c:51
 #4  <signal handler called>
 #5  0x00007fafbf3f2483 in __GI__IO_vfscanf () from /lib64/libc.so.6
 #6  0x00007fafbf408f27 in vsscanf () from /lib64/libc.so.6
 #7  0x00007fafbf4032f7 in sscanf () from /lib64/libc.so.6
 #8  0x00007fafbf449ba6 in __tzset_parse_tz () from /lib64/libc.so.6
 #9  0x00007fafbf44c4cb in __tzfile_compute () from /lib64/libc.so.6
 #10 0x00007fafbf44ae17 in __tz_convert () from /lib64/libc.so.6
 #11 0x00000000004022e2 in test_msg (format=format@entry=0x40458c "PASS\n") at msg.c:51
 #12 0x0000000000401ceb in main (argc=<optimized out>, argv=<optimized out>) at ptrace_sig.c:172

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Tested-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
xemul pushed a commit that referenced this issue Jun 14, 2016
It can be dead-lokced:
 #0  0x00007fafbf49f6ac in __lll_lock_wait_private () from /lib64/libc.so.6
 #1  0x00007fafbf44af1c in _L_lock_2460 () from /lib64/libc.so.6
 #2  0x00007fafbf44ad57 in __tz_convert () from /lib64/libc.so.6
 #3  0x00000000004022e2 in test_msg (format=0x404508 "Receive signal %d\n") at msg.c:51
 #4  <signal handler called>
 #5  0x00007fafbf3f2483 in __GI__IO_vfscanf () from /lib64/libc.so.6
 #6  0x00007fafbf408f27 in vsscanf () from /lib64/libc.so.6
 #7  0x00007fafbf4032f7 in sscanf () from /lib64/libc.so.6
 #8  0x00007fafbf449ba6 in __tzset_parse_tz () from /lib64/libc.so.6
 #9  0x00007fafbf44c4cb in __tzfile_compute () from /lib64/libc.so.6
 #10 0x00007fafbf44ae17 in __tz_convert () from /lib64/libc.so.6
 #11 0x00000000004022e2 in test_msg (format=format@entry=0x40458c "PASS\n") at msg.c:51
 #12 0x0000000000401ceb in main (argc=<optimized out>, argv=<optimized out>) at ptrace_sig.c:172

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Tested-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
xemul pushed a commit that referenced this issue Jun 28, 2016
It can be dead-lokced:
 #0  0x00007fafbf49f6ac in __lll_lock_wait_private () from /lib64/libc.so.6
 #1  0x00007fafbf44af1c in _L_lock_2460 () from /lib64/libc.so.6
 #2  0x00007fafbf44ad57 in __tz_convert () from /lib64/libc.so.6
 #3  0x00000000004022e2 in test_msg (format=0x404508 "Receive signal %d\n") at msg.c:51
 #4  <signal handler called>
 #5  0x00007fafbf3f2483 in __GI__IO_vfscanf () from /lib64/libc.so.6
 #6  0x00007fafbf408f27 in vsscanf () from /lib64/libc.so.6
 #7  0x00007fafbf4032f7 in sscanf () from /lib64/libc.so.6
 #8  0x00007fafbf449ba6 in __tzset_parse_tz () from /lib64/libc.so.6
 #9  0x00007fafbf44c4cb in __tzfile_compute () from /lib64/libc.so.6
 #10 0x00007fafbf44ae17 in __tz_convert () from /lib64/libc.so.6
 #11 0x00000000004022e2 in test_msg (format=format@entry=0x40458c "PASS\n") at msg.c:51
 #12 0x0000000000401ceb in main (argc=<optimized out>, argv=<optimized out>) at ptrace_sig.c:172

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Tested-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
criupatchwork pushed a commit to criupatchwork/criu that referenced this issue Sep 7, 2016
phys_stat_resolve() call mount_resolve_path() which requires that mntinfo_tree
in the ns_id struct is initialized. This is a problem we observed with sockets
on btrfs volumes:

 Program received signal SIGSEGV, Segmentation fault.
 0x00005555555bb6dd in mount_resolve_path (mntinfo_tree=<optimized out>, path=0x555555875790 "/var/lib/lxd/unix.socket") at criu/mount.c:213
 213     criu/mount.c: No such file or directory.
 (gdb) bt
 #0  0x00005555555bb6dd in mount_resolve_path (mntinfo_tree=<optimized out>, path=0x555555875790 "/var/lib/lxd/unix.socket") at criu/mount.c:213
 #1  0x00005555555be240 in phys_stat_resolve_dev (ns=<optimized out>, st_dev=43, path=<optimized out>) at criu/mount.c:240
 #2  0x00005555555be2bb in phys_stat_dev_match (st_dev=<optimized out>, phys_dev=41, ns=ns@entry=0x5555558753a0,
     path=path@entry=0x555555875790 "/var/lib/lxd/unix.socket") at criu/mount.c:256
 checkpoint-restore#3  0x00005555555e75ed in unix_process_name (d=d@entry=0x5555558756e0, tb=tb@entry=0x7fffffffe0c0, m=<optimized out>) at criu/sk-unix.c:565
 checkpoint-restore#4  0x00005555555e9378 in unix_collect_one (tb=0x7fffffffe0c0, m=0x555555869f18 <buf+312>) at criu/sk-unix.c:620
 checkpoint-restore#5  unix_receive_one (h=0x555555869f08 <buf+296>, arg=<optimized out>) at criu/sk-unix.c:692
 checkpoint-restore#6  0x00005555555b85aa in nlmsg_receive (buf=<optimized out>, arg=<optimized out>, err_cb=<optimized out>, cb=<optimized out>, len=<optimized out>)
     at criu/libnetlink.c:45
 checkpoint-restore#7  do_rtnl_req (nl=nl@entry=5, req=req@entry=0x7fffffffe220, size=size@entry=72, receive_callback=0x5555555e9290 <unix_receive_one>,
     error_callback=0x5555555b83d0 <rtnl_return_err>, error_callback@entry=0x0, arg=arg@entry=0x0) at criu/libnetlink.c:119
 checkpoint-restore#8  0x00005555555e9cf7 in do_collect_req (nl=nl@entry=5, req=req@entry=0x7fffffffe220, receive_callback=<optimized out>, arg=arg@entry=0x0, size=72)
     at criu/sockets.c:610
 checkpoint-restore#9  0x00005555555eb1d0 in collect_sockets (ns=ns@entry=0x7fffffffe300) at criu/sockets.c:636
 checkpoint-restore#10 0x000055555559ddfc in check_sock_diag () at criu/cr-check.c:118
 checkpoint-restore#11 cr_check () at criu/cr-check.c:999
 checkpoint-restore#12 0x00005555555872d0 in main (argc=<optimized out>, argv=0x7fffffffe678, envp=<optimized out>) at criu/crtools.c:719

Signed-off-by: Christian Brauner <christian.brauner@canonical.com>
0x7f454c46 pushed a commit to 0x7f454c46/criu that referenced this issue Jan 30, 2017
It can be dead-locked:

 #0  0x00007fafbf49f6ac in __lll_lock_wait_private () from /lib64/libc.so.6
 checkpoint-restore#1  0x00007fafbf44af1c in _L_lock_2460 () from /lib64/libc.so.6
 checkpoint-restore#2  0x00007fafbf44ad57 in __tz_convert () from /lib64/libc.so.6
 checkpoint-restore#3  0x00000000004022e2 in test_msg (format=0x404508 "Receive signal %d\n") at msg.c:51
 checkpoint-restore#4  <signal handler called>
 checkpoint-restore#5  0x00007fafbf3f2483 in __GI__IO_vfscanf () from /lib64/libc.so.6
 checkpoint-restore#6  0x00007fafbf408f27 in vsscanf () from /lib64/libc.so.6
 checkpoint-restore#7  0x00007fafbf4032f7 in sscanf () from /lib64/libc.so.6
 checkpoint-restore#8  0x00007fafbf449ba6 in __tzset_parse_tz () from /lib64/libc.so.6
 checkpoint-restore#9  0x00007fafbf44c4cb in __tzfile_compute () from /lib64/libc.so.6
 checkpoint-restore#10 0x00007fafbf44ae17 in __tz_convert () from /lib64/libc.so.6
 checkpoint-restore#11 0x00000000004022e2 in test_msg (format=format@entry=0x40458c "PASS\n") at msg.c:51
 checkpoint-restore#12 0x0000000000401ceb in main (argc=<optimized out>, argv=<optimized out>) at ptrace_sig.c:172

https://jira.sw.ru/browse/PSBM-47772

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@virtuozzo.com>
criupatchwork pushed a commit to criupatchwork/criu that referenced this issue Jan 30, 2017
'info' array is off-by-one, nla_parse_nested() requires destination
array (i.e. 'info') to have maxtype+1 (i.e. IFLA_INFO_MAX+1) elements:

	ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffef823e3f8
	WRITE of size 48 at 0x7ffef823e3f8 thread T0
	    #0 0x7f9ab7a3915b in __asan_memset (/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/libasan.so.2+0x8d15b)
	    #1 0x7f9ab6d4e553 in nla_parse (/usr/lib64/libnl-3.so.200+0xa553)
	    #2 0x4acfb7 in dump_one_netdev criu/net.c:445
	    checkpoint-restore#3 0x4adb60 in dump_one_ethernet criu/net.c:594
	    checkpoint-restore#4 0x4adb60 in dump_one_link criu/net.c:665
	    checkpoint-restore#5 0x48af69 in nlmsg_receive criu/libnetlink.c:45
	    checkpoint-restore#6 0x48af69 in do_rtnl_req criu/libnetlink.c:119
	    checkpoint-restore#7 0x4b0e86 in dump_links criu/net.c:878
	    checkpoint-restore#8 0x4b0e86 in dump_net_ns criu/net.c:1651
	    checkpoint-restore#9 0x4a760d in do_dump_namespaces criu/namespaces.c:985
	    checkpoint-restore#10 0x4a760d in dump_namespaces criu/namespaces.c:1045
	    checkpoint-restore#11 0x451ef7 in cr_dump_tasks criu/cr-dump.c:1799
	    checkpoint-restore#12 0x424588 in main criu/crtools.c:736
	    checkpoint-restore#13 0x7f9ab67b171f in __libc_start_main (/lib64/libc.so.6+0x2071f)
	    checkpoint-restore#14 0x4253d8 in _start (/criu/criu/criu+0x4253d8)

	Address 0x7ffef823e3f8 is located in stack of thread T0 at offset 264 in frame
	    #0 0x4ac9ef in dump_one_netdev criu/net.c:364

	  This frame has 5 object(s):
	    [32, 168) 'netdev'
	    [224, 264) 'info' <== Memory access at offset 264 overflows this variable
	    [320, 1040) 'req'
	    [1088, 3368) 'path'
	    [3424, 3625) 'stable_secret'

Increase 'info' size to fix this.

Fixes: b705dcc ("net: pass the struct nlattrs to dump() functions")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
xemul pushed a commit that referenced this issue Jan 31, 2017
'info' array is off-by-one, nla_parse_nested() requires destination
array (i.e. 'info') to have maxtype+1 (i.e. IFLA_INFO_MAX+1) elements:

	ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffef823e3f8
	WRITE of size 48 at 0x7ffef823e3f8 thread T0
	    #0 0x7f9ab7a3915b in __asan_memset (/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/libasan.so.2+0x8d15b)
	    #1 0x7f9ab6d4e553 in nla_parse (/usr/lib64/libnl-3.so.200+0xa553)
	    #2 0x4acfb7 in dump_one_netdev criu/net.c:445
	    #3 0x4adb60 in dump_one_ethernet criu/net.c:594
	    #4 0x4adb60 in dump_one_link criu/net.c:665
	    #5 0x48af69 in nlmsg_receive criu/libnetlink.c:45
	    #6 0x48af69 in do_rtnl_req criu/libnetlink.c:119
	    #7 0x4b0e86 in dump_links criu/net.c:878
	    #8 0x4b0e86 in dump_net_ns criu/net.c:1651
	    #9 0x4a760d in do_dump_namespaces criu/namespaces.c:985
	    #10 0x4a760d in dump_namespaces criu/namespaces.c:1045
	    #11 0x451ef7 in cr_dump_tasks criu/cr-dump.c:1799
	    #12 0x424588 in main criu/crtools.c:736
	    #13 0x7f9ab67b171f in __libc_start_main (/lib64/libc.so.6+0x2071f)
	    #14 0x4253d8 in _start (/criu/criu/criu+0x4253d8)

	Address 0x7ffef823e3f8 is located in stack of thread T0 at offset 264 in frame
	    #0 0x4ac9ef in dump_one_netdev criu/net.c:364

	  This frame has 5 object(s):
	    [32, 168) 'netdev'
	    [224, 264) 'info' <== Memory access at offset 264 overflows this variable
	    [320, 1040) 'req'
	    [1088, 3368) 'path'
	    [3424, 3625) 'stable_secret'

Increase 'info' size to fix this.

Fixes: b705dcc ("net: pass the struct nlattrs to dump() functions")
travis-ci: success for net: fix stack out-of-bounds access in dump_one_netdev()
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
xemul pushed a commit that referenced this issue Feb 1, 2017
'info' array is off-by-one, nla_parse_nested() requires destination
array (i.e. 'info') to have maxtype+1 (i.e. IFLA_INFO_MAX+1) elements:

	ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffef823e3f8
	WRITE of size 48 at 0x7ffef823e3f8 thread T0
	    #0 0x7f9ab7a3915b in __asan_memset (/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/libasan.so.2+0x8d15b)
	    #1 0x7f9ab6d4e553 in nla_parse (/usr/lib64/libnl-3.so.200+0xa553)
	    #2 0x4acfb7 in dump_one_netdev criu/net.c:445
	    #3 0x4adb60 in dump_one_ethernet criu/net.c:594
	    #4 0x4adb60 in dump_one_link criu/net.c:665
	    #5 0x48af69 in nlmsg_receive criu/libnetlink.c:45
	    #6 0x48af69 in do_rtnl_req criu/libnetlink.c:119
	    #7 0x4b0e86 in dump_links criu/net.c:878
	    #8 0x4b0e86 in dump_net_ns criu/net.c:1651
	    #9 0x4a760d in do_dump_namespaces criu/namespaces.c:985
	    #10 0x4a760d in dump_namespaces criu/namespaces.c:1045
	    #11 0x451ef7 in cr_dump_tasks criu/cr-dump.c:1799
	    #12 0x424588 in main criu/crtools.c:736
	    #13 0x7f9ab67b171f in __libc_start_main (/lib64/libc.so.6+0x2071f)
	    #14 0x4253d8 in _start (/criu/criu/criu+0x4253d8)

	Address 0x7ffef823e3f8 is located in stack of thread T0 at offset 264 in frame
	    #0 0x4ac9ef in dump_one_netdev criu/net.c:364

	  This frame has 5 object(s):
	    [32, 168) 'netdev'
	    [224, 264) 'info' <== Memory access at offset 264 overflows this variable
	    [320, 1040) 'req'
	    [1088, 3368) 'path'
	    [3424, 3625) 'stable_secret'

Increase 'info' size to fix this.

Fixes: b705dcc ("net: pass the struct nlattrs to dump() functions")
travis-ci: success for net: fix stack out-of-bounds access in dump_one_netdev()
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
xemul pushed a commit that referenced this issue Feb 1, 2017
'info' array is off-by-one, nla_parse_nested() requires destination
array (i.e. 'info') to have maxtype+1 (i.e. IFLA_INFO_MAX+1) elements:

	ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffef823e3f8
	WRITE of size 48 at 0x7ffef823e3f8 thread T0
	    #0 0x7f9ab7a3915b in __asan_memset (/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/libasan.so.2+0x8d15b)
	    #1 0x7f9ab6d4e553 in nla_parse (/usr/lib64/libnl-3.so.200+0xa553)
	    #2 0x4acfb7 in dump_one_netdev criu/net.c:445
	    #3 0x4adb60 in dump_one_ethernet criu/net.c:594
	    #4 0x4adb60 in dump_one_link criu/net.c:665
	    #5 0x48af69 in nlmsg_receive criu/libnetlink.c:45
	    #6 0x48af69 in do_rtnl_req criu/libnetlink.c:119
	    #7 0x4b0e86 in dump_links criu/net.c:878
	    #8 0x4b0e86 in dump_net_ns criu/net.c:1651
	    #9 0x4a760d in do_dump_namespaces criu/namespaces.c:985
	    #10 0x4a760d in dump_namespaces criu/namespaces.c:1045
	    #11 0x451ef7 in cr_dump_tasks criu/cr-dump.c:1799
	    #12 0x424588 in main criu/crtools.c:736
	    #13 0x7f9ab67b171f in __libc_start_main (/lib64/libc.so.6+0x2071f)
	    #14 0x4253d8 in _start (/criu/criu/criu+0x4253d8)

	Address 0x7ffef823e3f8 is located in stack of thread T0 at offset 264 in frame
	    #0 0x4ac9ef in dump_one_netdev criu/net.c:364

	  This frame has 5 object(s):
	    [32, 168) 'netdev'
	    [224, 264) 'info' <== Memory access at offset 264 overflows this variable
	    [320, 1040) 'req'
	    [1088, 3368) 'path'
	    [3424, 3625) 'stable_secret'

Increase 'info' size to fix this.

Fixes: b705dcc ("net: pass the struct nlattrs to dump() functions")
travis-ci: success for net: fix stack out-of-bounds access in dump_one_netdev()
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
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