Hello,
In consideration of my prior messages about SIGSEGV from January 24:
OS: CloudLinux 7
Exim: 4.97.1
One of our user attempted to send a message using MS Outlook 2007
(Microsoft Office Outlook 12.0) to a large number of recipients (~500).
However, some kind of unintended loop occurred, resulting in the delivery
of the same message multiple times.
audid.log:
time->Mon Feb 5 10:50:46 2024
type=ANOM_ABEND msg=audit(1707126646.073:841524): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=275431 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 10:51:15 2024
type=ANOM_ABEND msg=audit(1707126675.553:841533): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=275816 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 10:51:31 2024
type=ANOM_ABEND msg=audit(1707126691.359:841536): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=276000 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 10:51:46 2024
type=ANOM_ABEND msg=audit(1707126706.055:841537): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=276083 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 10:52:34 2024
type=ANOM_ABEND msg=audit(1707126754.059:841548): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=276473 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 11:05:27 2024
type=ANOM_ABEND msg=audit(1707127527.253:841886): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=285096 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 11:05:54 2024
type=ANOM_ABEND msg=audit(1707127554.608:841887): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=285279 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 11:07:07 2024
type=ANOM_ABEND msg=audit(1707127627.452:841897): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=286040 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 11:08:26 2024
type=ANOM_ABEND msg=audit(1707127706.245:841921): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=286828 comm="exim" reason="memory violation"
sig=11
----
time->Mon Feb 5 11:09:32 2024
type=ANOM_ABEND msg=audit(1707127772.737:841932): auid=4294967295 uid=8
gid=12 ses=4294967295 pid=287422 comm="exim" reason="memory violation"
sig=11
paniclog:
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn SIGSEGV (fault address: 0x4)
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn SIGSEGV (null pointer
indirection)
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn SIGSEGV (275431 handling
incoming connection from (AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25
)
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn backtrace
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn ---
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x42a8de]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x42aa43]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn
/lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x450317]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x46a50f]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x417858]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x431204]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn /usr/sbin/exim() [0x40b299]
2024-02-05 10:50:46 1rWvci-000000019eR-2FFn ---
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK SIGSEGV (fault address: 0x4)
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK SIGSEGV (null pointer
indirection)
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK SIGSEGV (275816 handling
incoming connection from (AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25
)
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK backtrace
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK ---
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x42a8de]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x42aa43]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK
/lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x450317]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x46a50f]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x417858]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x431204]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK /usr/sbin/exim() [0x40b299]
2024-02-05 10:51:15 1rWvdC-000000019ke-2twK ---
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA SIGSEGV (fault address: 0x4)
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA SIGSEGV (null pointer
indirection)
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA SIGSEGV (276000 handling
incoming connection from (AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25
)
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA backtrace
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA ---
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x42a8de]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x42aa43]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA
/lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x450317]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x46a50f]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x417858]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x431204]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA /usr/sbin/exim() [0x40b299]
2024-02-05 10:51:31 1rWvdS-000000019nc-2DKA ---
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a SIGSEGV (fault address: 0x4)
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a SIGSEGV (null pointer
indirection)
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a SIGSEGV (276083 handling
incoming connection from (AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25
)
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a backtrace
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a ---
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x42a8de]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x42aa43]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a
/lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x450317]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x46a50f]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x417858]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x431204]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a /usr/sbin/exim() [0x40b299]
2024-02-05 10:51:46 1rWvdg-000000019ox-3O8a ---
debuglog:
10:50:46 Renaming spool header file:
/var/spool/exim//input/i/1rWvci-000000019eR-2FFn-H
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 Size of headers = 644
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 LOG: MAIN
10:50:46 <= xxx@??? H=(AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25 P=esmtpa
A=login:xxx@??? S=5155019 id=009d01da5818$c9a3de30$5ceb9a90$@???
T="Test message"
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 275444 outbytes=8189 error=0
10:50:46 LOG: MAIN PANIC
10:50:46 SIGSEGV (fault address: 0x4)
10:50:46 275444 flushing headers buffer
10:50:46 275444 writing data block fd=8 size=8189 timeout=300
10:50:46 275444 tls_write(0xfcf658, 8189)
10:50:46 LOG: MAIN PANIC
10:50:46 SIGSEGV (null pointer indirection)
10:50:46 275444 SSL_write(0x119ac20, 0xfcf658, 8189)
10:50:46 LOG: MAIN PANIC
10:50:46 SIGSEGV (275431 handling incoming connection from (AGNIESZKA)
[x.x.x.x] I=[x.x.x.x]:25
10:50:46 )
10:50:46 LOG: MAIN PANIC
10:50:46 backtrace
10:50:46 LOG: MAIN PANIC
10:50:46 ---
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x42a8de]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x42aa43]
10:50:46 LOG: MAIN PANIC
10:50:46 /lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x450317]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x46a50f]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x417858]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x431204]
10:50:46 LOG: MAIN PANIC
10:50:46 /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
10:50:46 LOG: MAIN PANIC
10:50:46 /usr/sbin/exim() [0x40b299]
10:50:46 LOG: MAIN PANIC
10:50:46 ---
10:50:46 275278 outbytes=8190 error=0
10:50:46 275278 flushing headers buffer
10:50:46 275278 writing data block fd=8 size=8190 timeout=300
10:50:46 275278 tls_write(0xfcf658, 8190)
#################
10:51:15 Renaming spool header file:
/var/spool/exim//input/C/1rWvdC-000000019ke-2twK-H
10:51:15 Size of headers = 644
10:51:15 LOG: MAIN
10:51:15 <= xxx@??? H=(AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25 P=esmtpa
A=login:xxx@??? S=5155019 id=00a401da5818$db955fb0$92c01f10$@???
T="Test message"
10:51:15 LOG: MAIN PANIC
10:51:15 SIGSEGV (fault address: 0x4)
10:51:15 LOG: MAIN PANIC
10:51:15 SIGSEGV (null pointer indirection)
10:51:15 LOG: MAIN PANIC
10:51:15 SIGSEGV (275816 handling incoming connection from (AGNIESZKA)
[x.x.x.x] I=[x.x.x.x]:25
10:51:15 )
10:51:15 LOG: MAIN PANIC
10:51:15 backtrace
10:51:15 LOG: MAIN PANIC
10:51:15 ---
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x42a8de]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x42aa43]
10:51:15 LOG: MAIN PANIC
10:51:15 /lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x450317]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x46a50f]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x417858]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x431204]
10:51:15 LOG: MAIN PANIC
10:51:15 /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
10:51:15 LOG: MAIN PANIC
10:51:15 /usr/sbin/exim() [0x40b299]
10:51:15 LOG: MAIN PANIC
10:51:15 ---
#################
10:51:31 Renaming spool header file:
/var/spool/exim//input/S/1rWvdS-000000019nc-2DKA-H
10:51:31 Size of headers = 644
10:51:31 LOG: MAIN
10:51:31 <= xxx@??? H=(AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25 P=esmtpa
A=login:xxx@??? S=5155019 id=00ae01da5818$e505c170$af114450$@???
T="Test message"
10:51:31 LOG: MAIN PANIC
10:51:31 SIGSEGV (fault address: 0x4)
10:51:31 LOG: MAIN PANIC
10:51:31 SIGSEGV (null pointer indirection)
10:51:31 LOG: MAIN PANIC
10:51:31 SIGSEGV (276000 handling incoming connection from (AGNIESZKA)
[x.x.x.x] I=[x.x.x.x]:25
10:51:31 )
10:51:31 LOG: MAIN PANIC
10:51:31 backtrace
10:51:31 LOG: MAIN PANIC
10:51:31 ---
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x42a8de]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x42aa43]
10:51:31 LOG: MAIN PANIC
10:51:31 /lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x450317]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x46a50f]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x417858]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x431204]
10:51:31 LOG: MAIN PANIC
10:51:31 /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
10:51:31 LOG: MAIN PANIC
10:51:31 /usr/sbin/exim() [0x40b299]
10:51:31 LOG: MAIN PANIC
10:51:31 ---
#################
10:51:46 Renaming spool header file:
/var/spool/exim//input/g/1rWvdg-000000019ox-3O8a-H
10:51:46 Size of headers = 644
10:51:46 LOG: MAIN
10:51:46 <= xxx@??? H=(AGNIESZKA) [x.x.x.x] I=[x.x.x.x]:25 P=esmtpa
A=login:xxx@??? S=5155112 id=00b501da5818$ed8c5f70$c8a51e50$@???
T="Test message"
10:51:46 LOG: MAIN PANIC
10:51:46 SIGSEGV (fault address: 0x4)
10:51:46 LOG: MAIN PANIC
10:51:46 SIGSEGV (null pointer indirection)
10:51:46 LOG: MAIN PANIC
10:51:46 SIGSEGV (276083 handling incoming connection from (AGNIESZKA)
[x.x.x.x] I=[x.x.x.x]:25
10:51:46 )
10:51:46 LOG: MAIN PANIC
10:51:46 backtrace
10:51:46 LOG: MAIN PANIC
10:51:46 ---
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x42a8de]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x42aa43]
10:51:46 LOG: MAIN PANIC
10:51:46 /lib64/libpthread.so.0(+0xf630) [0x7fca94fac630]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x450317]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x46a50f]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x417858]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x431204]
10:51:46 LOG: MAIN PANIC
10:51:46 /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fca94bf1555]
10:51:46 LOG: MAIN PANIC
10:51:46 /usr/sbin/exim() [0x40b299]
10:51:46 LOG: MAIN PANIC
10:51:46 ---
10:51:46 275718 outbytes=8190 error=0
10:51:46 275718 flushing headers buffer
10:51:46 275718 writing data block fd=8 size=8190 timeout=300
and so on...
Any tips on how to solve this?
Thank you,
Mateusz
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