Re: Panic on service(imap) during FETCH/APPEND some messages

8 Jun 2021


      ...
On 31/05/2021 22:32 Alessio Cecchi <alessio@skye.it> wrote:
Hi,
when I check "doveadm log errors" I found some fatal error repeated many
times by around the same users

Panic: file message-part-data.c

May 31 21:03:46 pop08 dovecot: imap(user1@email.com)
session=<tON64qTDu8OXFBVM>: Error: Mailbox INBOX: UID=3454:
imap_bodystructure_parse() failed: message_part lines doesn't match
lines in BODYSTRUCTURE
May 31 21:03:46 pop08 dovecot: imap(user1@email.com)
session=<tON64qTDu8OXFBVM>: Error: Mailbox INBOX: UID=3454:
imap_bodystructure_parse() failed: message_part lines doesn't match
lines in BODYSTRUCTURE
May 31 21:03:46 pop08 dovecot: imap(user1@email.com)
session=<tON64qTDu8OXFBVM>: Panic: file message-part-data.c: line 579
(message_part_is_attachment): assertion failed: (data != NULL)
May 31 21:03:46 pop08 dovecot: imap(user1@email.com)
session=<tON64qTDu8OXFBVM>: Error: Raw backtrace:
/usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42)
[0x7f294d7fdac2] ->
/usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f294d7fdbce]
-> /usr/lib64/dovecot/libdovecot.so.0(+0xf3cde) [0x7f294d80acde] ->
/usr/lib64/dovecot/libdovecot.so.0(+0xf3d81) [0x7f294d80ad81] ->
/usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f294d75c25a] ->
/usr/lib64/dovecot/libdovecot.so.0(+0xd377d) [0x7f294d7ea77d] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(+0x3ecbc) [0x7f294db0ccbc] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(+0x3eca4) [0x7f294db0cca4] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_set_attachment_keywords+0xe7)
[0x7f294db0dd17] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc15a4)
[0x7f294db8f5a4] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc190e)
[0x7f294db8f90e] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_init_stream+0x332)
[0x7f294db8fd32] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x77428)
[0x7f294db45428] ->
/usr/lib64/dovecot/libdovecot-storage.soindex-mail-headers.c.0(mail_get_hdr_stream_because+0x5b)
[0x7f294db0d6ab] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_get_header_stream+0x18a)
[0x7f294db8d68a] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_header_stream+0x53)
[0x7f294db0d493] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x5aa)
[0x7f294dbd20aa] -> dovecot/imap user1@email.com 18.123.45.76 UID
FETCH [0x5568ba7fd5ae] -> dovecot/imap user1@email.com
18.123.45.76 UID FETCH [0x5568ba7fb0ac] -> dovecot/imap
user1@email.com 18.123.45.76 UID FETCH
[0x5568ba7fc6e5] -> dovecot/imap user1@email.com 18.123.45.76 UID
FETCH [0x5568ba7ec7ed] -> dovecot/imap
user1@email.com 18.123.45.76 UID FETCH
[0x5568ba7f9614] -> dovecot/imap user1@email.com 18.123.45.76 UID
FETCH [0x5568ba7f7502] -> dovecot/imap user1@email.com
18.123.45.76 UID FETCH [0x5568ba7f7591] -> dovecot/imap
user1@email.com 18.123.45.76 UID FETCH [0x5568ba7f7759] ->
dovecot/imap user1@email.com 18.123.45.76 UID
FETCH [0x5568ba7f7a15] -> dovecot/imap
user1@email.com 18.123.45.76 UID FETCH
[0x5568ba7f7ff9] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65)
[0x7f294d822f45] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x12b)
[0x7f294d8248fb] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x59)
[0x7f294d823049]
May 31 21:03:46 pop08 dovecot: imap(user1@email.com)
session=<tON64qTDu8OXFBVM>: Fatal: master: service(imap): child 21483
killed with signal 6 (core dumps disabled -
https://dovecot.org/bugreport.html#coredumps)

Panic: file imap-bodystructure.c

May 31 12:06:05 pop01 dovecot: imap(user2@email.com)
session=<3b6TX53DetK5HrcI>: Panic: file imap-bodystructure.c: line 209
(part_write_body): assertion failed: (text == ((part->flags &
MESSAGE_PART_FLAG_TEXT) != 0))
May 31 12:06:05 pop01 dovecot: imap(user2@email.com)
session=<3b6TX53DetK5HrcI>: Error: Raw backtrace:
/usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42)
[0x7fe4e8000ac2] ->
/usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fe4e8000bce]
-> /usr/lib64/dovecot/libdovecot.so.0(+0xf3cde) [0x7fe4e800dcde] ->
/usr/lib64/dovecot/libdovecot.so.0(+0xf3d81) [0x7fe4e800dd81] ->
/usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fe4e7f5f25a] ->
/usr/lib64/dovecot/libdovecot.so.0(imap_bodystructure_write+0x263)
[0x7fe4e7fd6a53] -> /usr/lib64/dovecot/libdovecot.so.0(+0xbcca3)
[0x7fe4e7fd6ca3] ->
/usr/lib64/dovecot/libdovecot.so.0(imap_bodystructure_write+0x28a)
[0x7fe4e7fd6a7a] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc0aa7)
[0x7fe4e8391aa7] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc1563)
[0x7fe4e8392563] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc190e)
[0x7fe4e839290e] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_init_stream+0x332)
[0x7fe4e8392d32] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x77428)
[0x7fe4e8348428] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_stream_because+0x64)
[0x7fe4e83105a4] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_prefetch+0x96)
[0x7fe4e8393bc6] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_prefetch+0x2e)
[0x7fe4e830fe4e] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0xc98cd)
[0x7fe4e839a8cd] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x110)
[0x7fe4e839ae30] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x22)
[0x7fe4e831eaa2] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_search_next+0x3d)
[0x7fe4e831eb0d] -> dovecot/imap user2@email.com 89.45.183.8 UID
fetch [0x5649a2e121dc] -> dovecot/imap user2@email.com
89.45.183.8 UID fetch [0x5649a2e136e5] ->
dovecot/imap user2@email.com 89.45.183.8 UID fetch
[0x5649a2e037ed] -> dovecot/imap user2@email.com 89.45.183.8 UID
fetch [0x5649a2e10614] -> dovecot/imap
user2@email.com 89.45.183.8 UID fetch [0x5649a2e0e502] ->
dovecot/imap user2@email.com 89.45.183.8 UID fetch
[0x5649a2e0e591] -> dovecot/imap user2@email.com 89.45.183.8 UID
fetch [0x5649a2e0e759] -> dovecot/imap user2@email.com
89.45.183.8 UID fetch [0x5649a2e0ea15] ->
dovecot/imap user2@email.com 89.45.183.8 UID fetch
[0x5649a2e0eff9] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65) [0x7fe4e8025f45]
May 31 12:06:05 pop01 dovecot: imap(user2@email.com)
session=<3b6TX53DetK5HrcI>: Fatal: master: service(imap): child 29622
killed with signal 6 (core dumps disabled -
https://dovecot.org/bugreport.html#coredumps)

Panic: file index-mail-headers.c

May 31 18:38:20 pop07 dovecot: imap(user3@email.com)
session=<i5VgbaLD1f5QEZQ5>: Panic: file index-mail-headers.c: line 198
(index_mail_parse_header_init): assertion failed:
(!mail->data.header_parser_initialized)
May 31 18:38:20 pop07 dovecot: imap(user3@email.com)
session=<i5VgbaLD1f5QEZQ5>: Error: Raw backtrace:
/usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42)
[0x7f73d1683ac2] ->
/usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f73d1683bce]
-> /usr/lib64/dovecot/libdovecot.so.0(+0xf3cde) [0x7f73d1690cde] ->
/usr/lib64/dovecot/libdovecot.so.0(+0xf3d81) [0x7f73d1690d81] ->
/usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f73d15e225a] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_parse_header_init+0x3b9)
[0x7f73d1a11dc9] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_parse_headers_internal+0x2b)
[0x7f73d1a127eb] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_init_stream+0x19f)
[0x7f73d1a15b9f] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x77428)
[0x7f73d19cb428] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_stream_because+0x64)
[0x7f73d19935a4] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x77207)
[0x7f73d19cb207] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_get_virtual_size+0x38)
[0x7f73d1993158] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(maildir_save_finish+0x154)
[0x7f73d19cc504] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_save_cancel+0x3e)
[0x7f73d19a239e] -> dovecot/imap user3@email.com 35.67.148.57
APPEND [0x558743e215d2] -> dovecot/imap user3@email.com
35.67.148.57 APPEND [0x558743e22918] -> dovecot/imap
user3@email.com 35.67.148.57 APPEND
[0x558743e31614] -> dovecot/imap user3@email.com 35.67.148.57
APPEND [0x558743e2edc9] -> dovecot/imap
user3@email.com 35.67.148.57 APPEND [0x558743e2eef4] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0x12b)
[0x7f73d16a8d3b] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xcc)
[0x7f73d16aa89c] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x59)
[0x7f73d16a9049] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38)
[0x7f73d16a9288] ->
/usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13)
[0x7f73d1613bb3] -> dovecot/imap user3@email.com 35.67.148.57
APPEND [0x558743e21202] ->
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7f73d11f1555] ->
dovecot/imap user3@email.com 35.67.148.57 APPEND [0x558743e21405]
May 31 18:38:20 pop07 dovecot: imap(user3@email.com)
session=<i5VgbaLD1f5QEZQ5>: Fatal: master: service(imap): child 9786
killed with signal 6 (core dumps disabled -
https://dovecot.org/bugreport.html#coredumps)
Are already know bugs?
Hi,
thank you for the coredumps, not all of the bugs are known it seems. I wonder if you could get a coredump for the "message-part-data.c" panic too?
Additionally it would be interesting to see the mail from INBOX of user1@email.com (UID=3454), that makes it crash. You could use one of the obsfuscate tools from https://www.dovecot.org/tools/ to provide .
The crash that occurred in imap-bodystructure.c is fixed in coming releases.
Markus
...
Thanks
--
Alessio Cecchi
Postmaster @ http://www.qboxmail.it
https://www.linkedin.com/in/alessice

Re: Panic on service(imap) during FETCH/APPEND some messages

Markus Valentin