On 2025-10-28 22:46, Jeremy Harris wrote:
To tell more, we'd need a stacktrace with debug info. Any chance of
getting a repeat, using a build done with "-O0 -ggdb", and feeding
a coredump to gdb "bt" ?
We were able to catch the same issue with debug symbols enabled.
Alarmingly, `exim ... -MC` command gets unexpected AF_UNIX socket in stdin:
```
Core was generated by `/usr/sbin/exim -MCD -MCP -MCS -MCT -MC
remote_smtp ...'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __strncmp_evex () at ../sysdeps/x86_64/multiarch/strcmp-evex.S:316
316 VMOVU (%rdi), %VMM(0)
(gdb) bt
#0 __strncmp_evex () at ../sysdeps/x86_64/multiarch/strcmp-evex.S:316
#1 0x000056136c03c7f0 in host_ntoa (type=-1, arg=0x7ffe26611fe0,
buffer=0x0, portptr=0x56136c173548 <sending_port>) at host.c:874
#2 0x000056136c01a2b8 in main (argc=12, cargv=0x7ffe26652228) at
exim.c:3160
(gdb) f 1
#1 0x000056136c03c7f0 in host_ntoa (type=-1, arg=0x7ffe26611fe0,
buffer=0x0, portptr=0x56136c173548 <sending_port>) at host.c:874
(gdb) p *(struct sockaddr *)arg
$1 = {sa_family = 1, sa_data = '\000' <repeats 13 times>}
```
Sincerely,
Karolis Breidokas
directadmin.com
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