https://bugs.exim.org/show_bug.cgi?id=2274
Bug ID: 2274
Summary: exim 4.91: segfault ... error 4 in libc-2.17.so
Product: Exim
Version: 4.91
Hardware: x86-64
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Content Scanning
Assignee: tom@???
Reporter: alexey@???
CC: exim-dev@???
Hello,
I've got Exim 4.91 segfaulting on CentOS 7, the case is not reproducible by
hands. It occurs without any noticeable logic.
In exim's maillog we have:
2018-05-07 16:16:30 1fFgwH-0000nJ-4f ** user@??? F=<admin@???>
R=spamcheck_director T=spamcheck: Child process of spamcheck transport (running
command "/usr/sbin/exim -oMr spam-scanned -bS") was terminated by signal 11
(Segmentation fault)
In messages we have:
exim[3061]: segfault at 0 ip 00007f9a3620fc8f sp 00007ffc3eb39a18 error 4 in
libc-2.17.so[7f9a3617b000+1b8000]
The exim version:
# exim -bV
Exim version 4.91 #4 built 09-May-2018 15:25:19
Copyright (c) University of Cambridge, 1995 - 2018
(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018
Berkeley DB: Berkeley DB 5.3.21: (May 11, 2012)
Support for: crypteq IPv6 Perl OpenSSL move_frozen_messages Content_Scanning
DKIM DNSSEC Event OCSP PRDR SPF TCP_Fast_Open Experimental_SRS
Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmjz
dbmnz dnsdb
Authenticators: cram_md5 dovecot plaintext spa
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore/mbx autoreply lmtp pipe smtp
Malware: f-protd f-prot6d drweb aveserver fsecure kavdaemon sophie clamd mksd
avast sock cmdline
Fixed never_users: 0
Configure owner: 0:0
Size of off_t: 8
2018-05-09 15:44:04 cwd=/usr/local/directadmin/custombuild 2 args: exim -bV
Configuration file is /etc/exim.conf
Spamcheck transport:
spamcheck:
driver = pipe
batch_max = 100
command = /usr/sbin/exim -oMr spam-scanned -bS
current_directory = "/tmp"
group = mail
home_directory = "/tmp"
log_output
message_prefix =
message_suffix =
return_fail_output
no_return_path_add
transport_filter = /usr/bin/spamc -u
${lookup{$domain}lsearch*{/etc/virtual/domainowners}{$value}}
use_bsmtp
user = mail
OS kernel: 3.10.0-693.21.1.el7.x86_64
Perl: natively installed from official repo: perl-5.16.3-292.el7.x86_64
Could you let me know how to trace further the segfult and fix it?
Regards,
Alex.
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