Dovecot 2.2.18 Panic: file index-mail-binary.c

Michael Borgelt mborgelt at borgelt.org
Tue Jul 28 07:12:15 UTC 2015 

Hi,
I got the following in my dovecot log's on an particular email message  
with dovecot-imap.

---snip---
Jul 28 08:42:11 hermes dovecot: imap(mborgelt): Panic: file  
index-mail-binary.c: line 354 (blocks_count_lines): assertion failed:  
(ret == -1)
Jul 28 08:42:11 hermes dovecot: imap(mborgelt): Error: Raw backtrace:  
/usr/lib/dovecot/libdovecot.so.0(+0x740f2) [0xb75780f2] ->  
/usr/lib/dovecot/libdovecot.so.0(+0x74212) [0xb7578212] ->  
/usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0xb7520484] ->  
/usr/lib/dovecot/libdovecot-storage.so.0(+0x99bbb) [0xb76abbbb] ->  
/usr/lib/dovecot/libdovecot-storage.so.0(index_mail_get_binary_stream+0x92)  
[0xb76ac122] ->  
/usr/lib/dovecot/libdovecot-storage.so.0(mail_get_binary_stream+0x72)  
[0xb7639172] ->  
/usr/lib/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x183)  
[0xb76ed323] -> dovecot/imap(+0x1a2b4) [0x800c32b4] ->  
dovecot/imap(+0x18907) [0x800c1907] ->  
dovecot/imap(imap_fetch_more+0x3d) [0x800c2aad] ->  
dovecot/imap(cmd_fetch+0x359) [0x800b5299] ->  
dovecot/imap(command_exec+0x4f) [0x800bff1f] -> dovecot/imap(+0x15c3b)  
[0x800bec3b] -> dovecot/imap(+0x15cc9) [0x800becc9] ->  
dovecot/imap(client_handle_input+0x13d) [0x800bf03d] ->  
dovecot/imap(client_input+0x95) [0x800bf445] ->  
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x5e) [0xb758c2fe] ->  
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xe2)  
[0xb758d522] ->  
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x1a)  
[0xb758c38a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x49)  
[0xb758c419] ->  
/usr/lib/dovecot/libdovecot.so.0(master_service_run+0x25) [0xb75261a5]  
-> dovecot/imap(main+0x384) [0x800b1f54] ->  
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__libc_start_main+0xf3)  
[0xb735ea63] -> dovecot/imap(+0x913a) [0x800b213a]
Jul 28 08:42:11 hermes dovecot: imap(mborgelt): Fatal: master:  
service(imap): child 30866 killed with signal 6 (core dumped)
---snip---

The dovecot -n output.
---snip---
# 2.2.18: /etc/dovecot/dovecot.conf
# OS: Linux 4.1.3 i686 Debian stretch/sid
lda_mailbox_autocreate = yes
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k
mail_location = maildir:~/Maildir
mailbox_list_index = yes
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope  
encoded-character vacation subaddress comparator-i;ascii-numeric  
relational regex imap4flags copy include variables body enotify  
environment mailbox date ihave
namespace inbox {
   inbox = yes
   location =
   mailbox Drafts {
     special_use = \Drafts
   }
   mailbox Junk {
     special_use = \Junk
   }
   mailbox Sent {
     special_use = \Sent
   }
   mailbox "Sent Messages" {
     special_use = \Sent
   }
   mailbox Trash {
     special_use = \Trash
   }
   prefix =
}
passdb {
   driver = pam
}
plugin {
   antispam_allow_append_to_spam = no
   antispam_backend = pipe
   antispam_debug_target = syslog
   antispam_pipe_program = /usr/local/bin/sa-learn.sh
   antispam_pipe_program_notspam_arg = --ham
   antispam_pipe_program_spam_arg = --spam
   antispam_spam = Junk
   antispam_trash = Trash
   antispam_verbose_debug = 1
   sieve = ~/.dovecot.sieve
   sieve_dir = ~/sieve
   sieve_vacation_send_from_recipient = yes
}
protocols = " imap sieve"
ssl_cert = </etc/dovecot/dovecot.pem
ssl_cipher_list =  
ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
ssl_dh_parameters_length = 2048
ssl_key = </etc/dovecot/private/dovecot.pem
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv3 !SSLv2
userdb {
   driver = passwd
}
protocol lda {
   log_path = /var/log/dovecot_deliver.log
   mail_plugins = sieve
}
protocol imap {
   mail_plugins = antispam
}
---snip---

gdb output:
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i586-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/lib/dovecot/imap...(no debugging symbols  
found)...done.
[New LWP 30866]
Core was generated by `dovecot/imap'.
Program terminated with signal SIGABRT, Aborted.
#0  0xb7764b60 in __kernel_vsyscall ()
---snip---

And this is the offending email:
---snip---
Return-Path: <linux-media-owner at vger.kernel.org>
X-Original-To: mborgelt at localhost
Delivered-To: mborgelt at localhost
Received: from localhost (localhost [127.0.0.1])
         by hermes.dg4yfa.org (Postfix) with ESMTP id 9B7E6520BAD
         for <mborgelt at localhost>; Tue, 28 Jul 2015 04:38:45 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at hermes.dg4yfa.org
Received: from hermes.dg4yfa.org ([127.0.0.1])
         by localhost (hermes.dg4yfa.org [127.0.0.1]) (amavisd-new, port 10024)
         with ESMTP id PUqAdlewtXE3 for <mborgelt at localhost>;
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Received: from pop3.1blu.de (localhost [127.0.0.1])
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         for <mborgelt at localhost>; Tue, 28 Jul 2015 04:38:43 +0200 (CEST)
Delivered-To: <xxxxx at xxxxxx.xxx.de>
Received: from ms-10.1blu.de ([178.254.4.101])
         by mb-17.1blu.de (Dovecot) with LMTP id KpihOJzptlWyFgAAZwzaeA
         for <xxxxx at xxxxxx.xxx.de>; Tue, 28 Jul 2015 04:31:56 +0200
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From:   Xiaoquan Li <xiaoquan.li at vivantecorp.com>
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CC:     Linaro MM SIG Mailman List <linaro-mm-sig at lists.linaro.org>
Subject: RE: [Linaro-mm-sig] [PATCH v3 0/2] RFC: Secure Memory Allocation
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Thread-Topic: [Linaro-mm-sig] [PATCH v3 0/2] RFC: Secure Memory Allocation
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Thread-Index: AQHQuwv8BuA+2hTILk+/oDnwCSiUlp3vdmmAgADK2CA=
Date:   Tue, 28 Jul 2015 02:22:37 +0000
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References: <1436531290-23191-1-git-send-email-benjamin.gaignard at linaro.org>
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---snip---

Ask if you need the complete core dump.

Regards, Michael.



-- 
Michael Borgelt
e-mail: mborgelt at borgelt.org
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