Package: exim4 Version: 4.86-4 Severity: important Dear Maintainer,
After upgrading from exim4 4.86-3 to 4.86-4, I observe a segfault when /etc/email-addresses is looked up by sendmail/exim and an entry with a rewriting rule is found. These mails don't get sent. Commenting out the corresponding line in /etc/email-addresses fixes the problem. I am seeing this segfault on armel, but not on amd64. # cat /etc/email-addresses # This is /etc/email-addresses. It is part of the exim package # # This file contains email addresses to use for outgoing mail. Any local # part not in here will be qualified by the system domain as normal. # # It should contain lines of the form: # #user: some...@isp.com #otheruser: someonee...@anotherisp.com sleveque: sylv...@gromi.net monit@donkeykong: sylv...@gromi.net root: sylv...@gromi.net # echo "Subject: test" | /usr/lib/sendmail -v sylv...@gromi.net Segmentation fault # echo "Subject: test" | strace /usr/lib/sendmail -v sylv...@gromi.net [snip] rt_sigaction(SIGTERM, {0xb6ec3b4c, [TERM], SA_RESTORER|SA_RESTART, 0xb68accf0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, {0xb6ec3b4c, [INT], SA_RESTORER|SA_RESTART, 0xb68accf0}, {SIG_DFL, [], 0}, 8) = 0 fstat64(0, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6e58000 read(0, "Subject: test\n", 4096) = 14 read(0, "", 4096) = 0 open("/etc/email-addresses", O_RDONLY|O_LARGEFILE) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=400, ...}) = 0 fstat64(4, {st_mode=S_IFREG|0644, st_size=400, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6e57000 _llseek(4, 0, [0], SEEK_SET) = 0 read(4, "# This is /etc/email-addresses. "..., 4096) = 400 read(4, "", 4096) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xc8b80b28} --- +++ killed by SIGSEGV +++ Segmentation fault # cat /etc/email-addresses # This is /etc/email-addresses. It is part of the exim package # # This file contains email addresses to use for outgoing mail. Any local # part not in here will be qualified by the system domain as normal. # # It should contain lines of the form: # #user: some...@isp.com #otheruser: someonee...@anotherisp.com sleveque: sylv...@gromi.net monit@donkeykong: sylv...@gromi.net #root: sylv...@gromi.net # echo "Subject: test" | /usr/lib/sendmail -v sylv...@gromi.net LOG: MAIN <= r...@donkeykong.gromi.net U=root P=local S=358 donkeykong:~# delivering 1ZrPx0-0002Kr-GX R: smarthost for sylv...@gromi.net T: remote_smtp_smarthost for sylv...@gromi.net Connecting to XXXXXXXXXXXXXXX:25 ... connected SMTP<< 220 XXXXXXXXXXXXXXXX ESMTP Postfix SMTP>> EHLO donkeykong.gromi.net SMTP<< 250-XXXXXXXXXXXXXXXX 250-PIPELINING 250-SIZE 35000000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN SMTP>> STARTTLS SMTP<< 220 2.0.0 Ready to start TLS SMTP>> EHLO donkeykong.gromi.net SMTP<< 250-XXXXXXXXXXXXXXXX 250-PIPELINING 250-SIZE 35000000 250-VRFY 250-ETRN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN SMTP>> MAIL FROM:<r...@gromi.net> SIZE=1390 SMTP>> RCPT TO:<sylv...@gromi.net> SMTP>> DATA SMTP<< 250 2.1.0 Ok SMTP<< 250 2.1.5 Ok SMTP<< 354 End data with <CR><LF>.<CR><LF> SMTP>> writing message and terminating "." SMTP<< 250 2.0.0 Ok: queued as 8F372D480B3 SMTP>> QUIT LOG: MAIN => sylv...@gromi.net R=smarthost T=remote_smtp_smarthost H=XXXXXXXXXXXXX [XXXXXXXXXX] X=TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128 CV=no DN="OU=GT42558204,OU=See www.rapidssl.com/resources/cps (c)15,OU=Domain Control Validated - RapidSSL(R),CN=XXXXXXXX" C="250 2.0.0 Ok: queued as 8F372D480B3" LOG: MAIN Completed -- Package-specific info: Exim version 4.86 #3 built 17-Oct-2015 13:01:01 Copyright (c) University of Cambridge, 1995 - 2015 (c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015 Berkeley DB: Berkeley DB 5.3.28: (September 9, 2013) Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DKIM DNSSEC PRDR OCSP Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmjz dbmnz dnsdb dsearch nis nis0 passwd Authenticators: cram_md5 plaintext Routers: accept dnslookup ipliteral manualroute queryprogram redirect Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp Fixed never_users: 0 Size of off_t: 8 Configuration file is /var/lib/exim4/config.autogenerated -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (50, 'unstable'), (40, 'experimental') Architecture: armel (armv5tel) Kernel: Linux 3.15-rc8-kirkwood Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages exim4 depends on: ii debconf [debconf-2.0] 1.5.57 ii exim4-base 4.86-4 ii exim4-daemon-light 4.86-4 exim4 recommends no packages. exim4 suggests no packages. -- debconf information excluded