https://bugs.exim.org/show_bug.cgi?id=3115
Bug ID: 3115
Summary: SIGSEGV during SMTP session
Product: Exim
Version: 4.97
Hardware: x86
OS: Windows
Status: NEW
Severity: bug
Priority: medium
Component: Transports
Assignee: unallocated@???
Reporter: h-k@???
CC: exim-dev@???
Found some random crash on smtp delivery
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 SIGSEGV (fault address: 0x184)
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 SEGV_MAPERR
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 SIGSEGV (null pointer indirection)
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 SIGSEGV (277196 delivering
1stjHp-00000001975-1yp8 to mx2.omnimail.org [87.255.211.70]
(Granex@???)
)
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 backtrace
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 ---
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x5a922)
[0x57f076ccb922]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x5aae4)
[0x57f076ccbae4]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8
/lib/x86_64-linux-gnu/libc.so.6(+0x45320) [0x74ceeea45320]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x101cdf)
[0x57f076d72cdf]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x50d40)
[0x57f076cc1d40]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x60f22)
[0x57f076cd1f22]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x95835)
[0x57f076d06835]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(+0x3e72a)
[0x57f076caf72a]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x74ceeea2a1ca]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x74ceeea2a28b]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 /usr/sbin/exim4(_start+0x25)
[0x57f076caf9d5]
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 ---
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 Delivery status for
Granex@???: got 0 of 7 bytes (pipeheader) from transport process
277196 for transport smtp
2024-09-26 11:18:00 1stjHp-00000001975-1yp8 == granex@???
<Granex@???> R=dnslookup T=remote_smtp defer (-1): smtp transport
process returned non-zero status 0x008b: terminated by signal 11
gdb /usr/sbin/exim4 CoreDump
GNU gdb (Ubuntu 15.0.50.20240403-0ubuntu1) 15.0.50.20240403-git
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Reading symbols from /usr/sbin/exim4...
This GDB supports auto-downloading debuginfo from the following URLs:
<
https://debuginfod.ubuntu.com>
Enable debuginfod for this session? (y or [n]) y
Debuginfod has been enabled.
To make this setting permanent, add 'set debuginfod enabled on' to .gdbinit.
Downloading separate debug info for /usr/sbin/exim4
(No debugging symbols found in /usr/sbin/exim4)
[New LWP 388644]
Downloading separate debug info for /lib/x86_64-linux-gnu/libcrypt.so.1
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Downloading separate debug info for /lib/x86_64-linux-gnu/libperl.so.5.38
warning: could not find '.gnu_debugaltlink' file for
/lib/x86_64-linux-gnu/libperl.so.5.38
Downloading separate debug info for /lib/x86_64-linux-gnu/libperl.so.5.38
Downloading separate debug info for /lib/x86_64-linux-gnu/libgnutls.so.30
Downloading separate debug info for /lib/x86_64-linux-gnu/libgnutls-dane.so.0
Downloading separate debug info for /lib/x86_64-linux-gnu/libpcre2-8.so.0
--Type <RET> for more, q to quit, c to continue without paging--
Downloading separate debug info for /lib/x86_64-linux-gnu/libidn.so.12
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Downloading separate debug info for /lib/x86_64-linux-gnu/libcap-ng.so.0
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Downloading separate debug info for /lib/x86_64-linux-gnu/libkrb5.so.3
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Downloading separate debug info for /lib/x86_64-linux-gnu/libcom_err.so.2
Downloading separate debug info for /lib/x86_64-linux-gnu/libkrb5support.so.0
Downloading separate debug info for /lib/x86_64-linux-gnu/libffi.so.8
Downloading separate debug info for /lib/x86_64-linux-gnu/libevent-2.1.so.7
Downloading separate debug info for /lib/x86_64-linux-gnu/libkeyutils.so.1
warning: could not find '.gnu_debugaltlink' file for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/Fcntl/Fcntl.so
Downloading separate debug info for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/Fcntl/Fcntl.so
warning: could not find '.gnu_debugaltlink' file for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/Cwd/Cwd.so
Downloading separate debug info for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/Cwd/Cwd.so
--Type <RET> for more, q to quit, c to continue without paging--
warning: could not find '.gnu_debugaltlink' file for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/DB_File/DB_File.so
Downloading separate debug info for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/DB_File/DB_File.so
warning: could not find '.gnu_debugaltlink' file for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/List/Util/Util.so
Downloading separate debug info for
/usr/lib/x86_64-linux-gnu/perl/5.38/auto/List/Util/Util.so
Downloading separate debug info for
/usr/lib/x86_64-linux-gnu/perl5/5.38/auto/DBI/DBI.so
Downloading separate debug info for system-supplied DSO at 0x7fff1756c000
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/sbin/exim4 -Mc 1sq5eR-00000001d6O-1SZl'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000061363ee3dcdf in ?? ()
(gdb) bt
#0 0x000061363ee3dcdf in ?? ()
#1 0x000061363ed8cd40 in ?? ()
#2 0x000061363ed9cf22 in ?? ()
#3 0x000061363ed76ea6 in ?? ()
#4 0x000074c13282a1ca in __libc_start_call_main
(main=main@entry=0x61363ed72000, argc=argc@entry=3,
argv=argv@entry=0x7fff17475148) at ../sysdeps/nptl/libc_start_call_main.h:58
#5 0x000074c13282a28b in __libc_start_main_impl (main=0x61363ed72000, argc=3,
argv=0x7fff17475148, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff17475138)
at ../csu/libc-start.c:360
#6 0x000061363ed7a9d5 in _start ()
(gdb)
Core -
https://dropmefiles.com/sVf6S
dpkg -l |grep exim
ii exim4 4.97-4ubuntu4.1 all
metapackage to ease Exim MTA (v4) installation
ii exim4-base 4.97-4ubuntu4.1
amd64 support files for all Exim MTA (v4) packages
ii exim4-config 4.97-4ubuntu4.1 all
configuration for the Exim MTA (v4)
ii exim4-daemon-heavy 4.97-4ubuntu4.1
amd64 Exim MTA (v4) daemon with extended features, including exiscan-acl
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