imap segfaults when using antispam plugin, and moving mail to an 'unsure' folder.
Andrew McN
andrew at mcnaughty.com
Wed Sep 2 11:43:34 UTC 2015
I've had no responses to this bug report. Does anyone have any ideas on
how I can move it forward?
Regards,
Andrew
On 13/08/15 06:08, Andrew McN wrote:
>
> I put up a question on serverfault first, which has the details,
> including a stack trace:
> http://serverfault.com/questions/713687/dovecot-antispam-error-storing-mail
> . Details also copied below.
>
> Is this a known bug? If I built dovecot from source rather than using
> the Ubuntu 14.04 packages, would I expect that to help? Are there any
> configuration details that might be relevant? (dovecot -n output shown
>
> Any help much appreciated.
>
> Andrew McNaughton
>
>
>
>
> Details on the serverfault page repeated below, plus a little more.
>
> -----------------------------------------------------
>
> Ubuntu 14.04.3 x86_64
> Running inside lxc-docker 1.7.0
> dovecot-imapd 1:2.2.9-1ubuntu2
> dovecot-antispam 2.0+20130822-2build1
>
> Filesystem is via docker, so aufs is involved, and under that on the
> host systems is ext4
>
> -----------------------------------------------------
>
> I know mail is not supposed to be moved into a mailbox of type 'unsure'.
> The server should refuse this action. What actually happens though is
> that the imap process throws an error and dies:
>
> Aug 12 17:53:07 255c7fc2d2f0 imap: antispam:
> mailbox_is_unsure(Review-Classification): 1
> Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user at example.com): Panic:
> file mail-storage.c: line 2141 (mailbox_copy): assertion failed:
> (!ctx->unfinished)
> Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user at example.com): Error: Raw
> backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f718e7dd271]
> -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f718e7dd34e] ->
> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f718e798a9e] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(+0x7196f) [0x7f718eab896f] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x15)
> [0x7f718eab8985] -> dovecot/imap(+0xded5) [0x7f718ef84ed5] ->
> dovecot/imap(command_exec+0x3c) [0x7f718ef8f6dc] ->
> dovecot/imap(+0x176cf) [0x7f718ef8e6cf] -> dovecot/imap(+0x17785)
> [0x7f718ef8e785] -> dovecot/imap(client_handle_input+0x125)
> [0x7f718ef8eaa5] -> dovecot/imap(client_input+0x75) [0x7f718ef8ee35] ->
> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f718e7ed247]
> -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7)
> [0x7f718e7edfd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38)
> [0x7f718e7ecde8] ->
> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
> [0x7f718e79dc93] -> dovecot/imap(main+0x2c4) [0x7f718ef832f4] ->
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f718e3dbec5]
> -> dovecot/imap(+0xc460) [0x7f718ef83460]
> Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user at example.com): Fatal:
> master: service(imap): child 58 killed with signal 6 (core dumped)
>
> -----------------------------------------------------------------------
>
> root at 8ec9579667fc:/# gdb /usr/lib/dovecot/imap /tmp/61
> GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 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 "x86_64-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...Reading symbols from
> /usr/lib/debug//usr/lib/dovecot/imap...done.
> done.
> [New LWP 61]
> Core was generated by `dovecot/imap'.
> Program terminated with signal SIGABRT, Aborted.
> #0 0x00007f5dd5394cc9 in __GI_raise (sig=sig at entry=6) at
> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
> 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
> (gdb) bt full
> #0 0x00007f5dd5394cc9 in __GI_raise (sig=sig at entry=6) at
> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
> resultvar = 0
> pid = 61
> selftid = 61
> #1 0x00007f5dd53980d8 in __GI_abort () at abort.c:89
> save_stage = 2
> act = {__sigaction_handler = {sa_handler = 0x800, sa_sigaction =
> 0x800}, sa_mask = {__val = {140041026109520, 178, 140041026077952, 512,
> 140040990095251, 140041026077952, 140041026077952, 512,
> 140040990087565, 140734823456136, 140040990231826, 140041026077952,
> 140734823456040, 0,
> 140040990231929, 140041026077952}}, sa_flags = -713567062,
> sa_restorer = 0x7fff6128dd01}
> sigs = {__val = {32, 0 <repeats 15 times>}}
> #2 0x00007f5dd5781298 in default_fatal_finish (type=<optimized out>,
> status=status at entry=0) at failures.c:192
> backtrace = 0x7f5dd79d0538
> "/usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f5dd5781271] ->
> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f5dd578134e] ->
> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f5dd573ca9e] ->
> /usr/lib/d"...
> #3 0x00007f5dd578134e in i_internal_fatal_handler (ctx=0x7fff6128dd70,
> format=<optimized out>, args=<optimized out>) at failures.c:653
> status = 0
> #4 0x00007f5dd573ca9e in i_panic (format=format at entry=0x7f5dd5ab1e68
> "file %s: line %d (%s): assertion failed: (%s)") at failures.c:264
> ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0}
> args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area =
> 0x7fff6128de60, reg_save_area = 0x7fff6128dda0}}
> #5 0x00007f5dd5a5c96f in mailbox_copy (_ctx=<optimized out>,
> mail=mail at entry=0x7f5dd79ffbc0) at mail-storage.c:2141
> ctx = 0x7f5dd7a043e0
> t = 0x7f5dd79fdf00
> keywords = 0x0
> pvt_flags = 0
> real_mail = <optimized out>
> ret = -1
> __FUNCTION__ = "mailbox_copy"
> #6 0x00007f5dd5a5c985 in mailbox_move (_ctx=<optimized out>,
> mail=0x7f5dd79ffbc0) at mail-storage.c:2153
> ctx = 0x7f5dd7a043e0
> #7 0x00007f5dd5f28ed5 in fetch_and_copy (copy_count_r=<synthetic
> pointer>, src_uidset_r=<synthetic pointer>, search_args=<optimized out>,
> src_trans_r=0x7fff6128df18, t=<optimized out>, move=true,
> client=0x7f5dd79ee440) at cmd-copy.c:67
> search_ctx = 0x7f5dd79ff920
> src_trans = 0x7f5dd79fec10
> srcset_ctx = {str = 0x7f5dd79d0350, first_uid = 0, last_uid =
> 4294967295}
> ret = 1
> save_ctx = 0x0
> mail = 0x7f5dd79ffbc0
> copy_count = 1
> src_uidset = 0x7f5dd79d0350
> #8 cmd_copy_full (cmd=0x7f5dd79eee70, move=<optimized out>) at
> cmd-copy.c:123
> client = 0x7f5dd79ee440
> dest_storage = <optimized out>
> destbox = 0x7f5dd79f8d10
> t = 0x7f5dd79fdf00
> src_trans = 0x7f5dd573d029 <t_pop_check+9>
> search_args = 0x7f5dd79f73a0
> messageset = 0x7f5dd79dbc10 "76"
> mailbox = 0x7f5dd79dbc18 "Review-Classification"
> src_uidset = <optimized out>
> sync_flags = (unknown: 0)
> imap_flags = (unknown: 0)
> changes = {pool = 0x7f5dd79d0350, uid_validity = 0, saved_uids =
> {arr = {buffer = 0x1, element_size = 140040986301132}, v = 0x1,
> v_modifiable = 0x1},
> ignored_modseq_changes = 3617438728, changed = 93,
> no_read_perm = 127}
> msg = <optimized out>
> ret = <optimized out>
> __FUNCTION__ = "cmd_copy_full"
> #9 0x00007f5dd5f336dc in command_exec (cmd=0x7f5dd79eee70) at
> imap-commands.c:158
> hook = 0x7f5dd79d90d0
> ret = <optimized out>
> #10 0x00007f5dd5f326cf in client_command_input (cmd=0x7f5dd79eee70) at
> imap-client.c:780
> client = 0x7f5dd79ee440
> command = <optimized out>
> __FUNCTION__ = "client_command_input"
> #11 0x00007f5dd5f32785 in client_command_input (cmd=0x7f5dd79eee70) at
> imap-client.c:841
> client = 0x7f5dd79ee440
> command = <optimized out>
> __FUNCTION__ = "client_command_input"
> #12 0x00007f5dd5f32aa5 in client_handle_next_command
> (remove_io_r=<synthetic pointer>, client=0x7f5dd79ee440) at
> imap-client.c:879
> No locals.
> #13 client_handle_input (client=client at entry=0x7f5dd79ee440) at
> imap-client.c:891
> _data_stack_cur_id = 3
> remove_io = false
> handled_commands = false
> __FUNCTION__ = "client_handle_input"
> #14 0x00007f5dd5f32e35 in client_input (client=0x7f5dd79ee440) at
> imap-client.c:933
> cmd = 0x7f5dd79e5ae0
> output = 0x7f5dd79eeca0
> bytes = 39
> __FUNCTION__ = "client_input"
> #15 0x00007f5dd5791247 in io_loop_call_io (io=0x7f5dd79eed90) at
> ioloop.c:388
> ioloop = 0x7f5dd79d8720
> t_id = 2
> #16 0x00007f5dd5791fd7 in io_loop_handler_run
> (ioloop=ioloop at entry=0x7f5dd79d8720) at ioloop-epoll.c:220
> ctx = 0x7f5dd79d93b0
> list = 0x7f5dd79dade0
> io = <optimized out>
> tv = {tv_sec = 1799, tv_usec = 999178}
> events_count = <optimized out>
> msecs = <optimized out>
> ret = 1
> i = 0
> call = <optimized out>
> __FUNCTION__ = "io_loop_handler_run"
> #17 0x00007f5dd5790de8 in io_loop_run (ioloop=0x7f5dd79d8720) at
> ioloop.c:412
> __FUNCTION__ = "io_loop_run"
> #18 0x00007f5dd5741c93 in master_service_run (service=0x7f5dd79d85b0,
> callback=<optimized out>) at master-service.c:566
> No locals.
> #19 0x00007f5dd5f272f4 in main (argc=1, argv=0x7f5dd79d8390) at main.c:400
> set_roots = {0x7f5dd614aa00 <imap_setting_parser_info>, 0x0}
> login_set = {auth_socket_path = 0x7f5dd79d0048 "\001",
> postlogin_socket_path = 0x0, postlogin_timeout_secs = 60,
> callback = 0x7f5dd5f3c0f0 <login_client_connected>,
> failure_callback = 0x7f5dd5f3be20 <login_client_failed>,
> request_auth_token = 1}
> service_flags = <optimized out>
> storage_service_flags = <optimized out>
> username = 0x0
> c = <optimized out>
>
> -------------------------------------------------------------------------------
>
> root at 8ec9579667fc:/# dovecot -n
> # 2.2.9: /etc/dovecot/dovecot.conf
> # OS: Linux 3.13.0-43-generic x86_64 Ubuntu 14.04.3 LTS ext4
> auth_debug = yes
> auth_verbose = yes
> disable_plaintext_auth = no
> first_valid_gid = 150
> first_valid_uid = 150
> last_valid_gid = 150
> last_valid_uid = 150
> mail_debug = yes
> mail_gid = vmail
> mail_location =
> maildir:/var/vmail/%d/%n/Maildir:INDEX=/var/vmail/%d/%n/Maildir/indexes
> mail_uid = vmail
> namespace inbox {
> inbox = yes
> location =
> mailbox Attention-Not-Required {
> auto = subscribe
> special_use = \Junk
> }
> mailbox Attention {
> auto = subscribe
> }
> mailbox Drafts {
> auto = subscribe
> special_use = \Drafts
> }
> mailbox Review-Classification {
> auto = subscribe
> }
> mailbox Sent {
> auto = subscribe
> special_use = \Sent
> }
> mailbox Trash {
> auto = subscribe
> special_use = \Trash
> }
> prefix =
> }
> passdb {
> args = /etc/dovecot/dovecot-sql.conf.ext
> driver = sql
> }
> plugin {
> antispam_backend = dspam
> antispam_debug_target = syslog
> antispam_dspam_args = --deliver=;--user;%u;
> antispam_dspam_binary = /usr/bin/dspam
> antispam_signature = X-DSPAM-Signature
> antispam_signature_missing = error
> antispam_spam = Attention-Not-Required
> antispam_trash = Trash
> antispam_unsure = Review-Classification
> antispam_verbose_debug = 1
> mail_log_events = delete undelete expunge copy mailbox_delete
> mailbox_rename
> mail_log_fields = uid box msgid size
> sieve = ~/.dovecot.sieve
> sieve_dir = ~/sieve
> }
> postmaster_address = postmaster at example.net
> protocols = " imap lmtp"
> service lmtp {
> inet_listener lmtp {
> address = 127.0.0.1
> port = 24
> }
> user = vmail
> }
> ssl_cert = </etc/dovecot/dovecot.crt
> ssl_key = </etc/dovecot/private/dovecot.key
> ssl_protocols = TLSv1.2 TLSv1.1 TLSv1 !SSLv3 !SSLv2
> userdb {
> args = /etc/dovecot/dovecot-sql.conf.ext
> driver = sql
> }
> protocol lmtp {
> mail_plugins = " sieve"
> }
> protocol lda {
> mail_plugins = " sieve"
> }
> protocol imap {
> mail_plugins = " antispam"
> }
>
>
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