https://bugs.exim.org/show_bug.cgi?id=3005
Bug ID: 3005
Summary: segfault while SMTP error from remote mail server
after RCPT TO handling
Product: Exim
Version: 4.94
Hardware: x86-64
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Transports
Assignee: unallocated@???
Reporter: lkazankin@???
CC: exim-dev@???
/var/log/messages
May 22 08:57:47 <host> kernel: exim[4587]: segfault at 17c ip 00000000004bca6a
sp 00007fff069acbe0 error 4 in exim-4.94.2-2[400000+115000]
/var/log/exim/exim_paniclog
2023-05-22 08:57:47.158 1pzxEL-0004JR-AX Delivery status for
non-existing-mailbox@???: got 0 of 7 bytes (pipeheader) from transport
process 4587 for transport smtp
exim -Mvl 1pzxEL-0004JR-AX
2023-05-22 08:57:32.091 H=mail.example.com [<IP>] SMTP error from remote mail
server after RCPT TO:<non-existing-mailbox@???>: 550 5.1.1 Bad
destination mailbox address (non-existing-mailbox@???).
2023-05-22 08:57:32.092 H=mail.example.com [<IP>]: SMTP error from remote mail
server after RCPT TO:<non-existing-mailbox@???>: 550 5.1.1 Bad
destination mailbox address (non-existing-mailbox@???).
2023-05-22 08:57:47.160 non-existing-mailbox@???
<non-existing-mailbox@???> R=dnslookup T=remote_smtp defer (-1)
DT=0.000s: smtp transport process returned non-zero status 0x008b: terminated
by signal 11
*** Frozen
exim -d+all -M 1pzxEL-0004JR-AX
09:51:50.327 50171 Connecting to mail.example.com [<IP>]:25 ... <IP> in
hosts_try_fastopen? yes (matched "*")
09:51:50.327 50171 TFO mode sendto, no data: EINPROGRESS
09:51:50.327 50171 connected
09:51:50.327 50171 ╭considering: $primary_hostname
09:51:50.327 50171 ├──expanding: $primary_hostname
09:51:50.327 50171 ╰─────result: <host>
09:52:05.348 50171 SMTP(Connection timed out)<<
09:52:05.348 50171 SMTP(close)>>
09:52:05.375 50164 reading pipe for subprocess 50171 (not ended yet)
09:52:05.375 50164 expect 7 bytes (pipeheader) from tpt process 50171
09:52:05.375 50164 LOG: MAIN PANIC
09:52:05.375 50164 Delivery status for non-existing-mailbox@???: got
0 of 7 bytes (pipeheader) from transport process 50171 for transport smtp
09:52:05.375 50164
09:52:05.375 50164 fresh-exec forking for logfile-open
09:52:05.376 50164 fresh-exec forked for logfile-open: 51706
09:52:05.376 51706 postfork: logfile-open
09:52:05.376 50164 fresh-exec forking for logfile-open
09:52:05.376 50164 fresh-exec forked for logfile-open: 51707
09:52:05.376 51707 postfork: logfile-open
09:52:05.377 50164 remote delivery process 50171 ended: status=008b
09:52:05.377 50164 set_process_info: 50164 delivering 1pzxEL-0004JR-AX
09:52:05.377 50164 post-process non-existing-mailbox@??? (1)
09:52:05.378 50164 LOG: MAIN
09:52:05.378 50164 == non-existing-mailbox@???
<non-existing-mailbox@???> R=dnslookup T=remote_smtp defer (-1)
DT=0.000s: smtp transport process returned non-zero status 0x008b: terminated
by signal 11
/etc/centos-release
CentOS Linux release 7.6.1810 (Core)
=======
Hello,
Are there any ideas what else I can check to help fix this segfault?
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