LMTP Crash with Dovecot 2.3.18
Patrick Domack
patrickdk at patrickdk.com
Sat Feb 12 23:50:27 UTC 2022
I have checked my 6 dovecot servers that where upgraded a week ago to
2.3.18 and none of them have segfaults.
Once is using squat, three using lucene, one using xapian, and two use
nothing.
4 are running on ubuntu 20.04, one on ubuntu 14.04, and one on alpine 3.15
Quoting Bryan Jacobs <b at q3q.us>:
> Dear Dovecot Users,
>
> Upgrading from Dovecot 2.3.14 to 2.3.18 on Arch gives me the
> following dump immediately (100% of the time) on every LMTP handler
> invocation. Of course I'm using Squat for FTS (yes, I understand
> it's deprecated...).
>
> plugin {
> fts = squat
> fts_squat = partial=4 full=4
> fts_autoindex = yes
> sieve = file:/mnt/mail/%Ln/sieve;active=/mnt/mail/%Ln/.dovecot.sieve
> master_user = %u
> }
>
>
> lmtp[592878]: segfault at 50 ip 00007f5355153eed sp 00007fff45b87ba0
> error 4 in lib20_fts_plugin.so[7f5355153000+11000]
>
> Code: 00 4c 8d 05 f9 17 01 00 48 8d 0d ae 19 01 00 31 c0 ba 53 01 00
> 00 48 8d 35 f2 17 01 00 48 8d 3d 49 01 01 00 ff 15 53 7f 03 00 <48>
> 8b 04 25 50 00 00 00 0f 0b be 2a 01 00 00 8d 3d cf 17 01 00
>
>> Feb 08 01:23:20 mail systemd-coredump[592880]: [🡕] Process 592878
>> (lmtp) of user 0 dumped core.
>>
>>
>> Module linux-vdso.so.1 with build-id
>> 0f9bd6468a3798a863048e6cd927830796809b46
>> Module libffi.so.8
>> with build-id f90d8b734f6de9b25faedb8cbfab7054dafc0a42
>> Module libp11-kit.so.0
>> with build-id cc372ea3c28c4d3dfc633b4d2e933c8584d2af16
>>
>> Module
>> libcrypt.so.2 with build-id 5d45bdae438c16d52364b23d70bd5041ad070b0b
>> Module librt.so.1
>> with build-id 75484da2d6f1515189eefa076e0a40328834cd16
>>
>> Module
>> libnss_systemd.so.2 with build-id
>> 56da60140e2f0e47044a141378608146f6fd9bb8
>> Module
>> libnss_files.so.2 with build-id
>> 1a36dfc01d3a1010b2ee79766a24a8090a3266d5
>> Module
>> libdovecot-sieve.so.0 with build-id
>> a358da532b8ef09782b5a97a951df8ab5c8eb0db
>>
>> Module lib90_sieve_plugin.so with
>> build-id eb52835c5c3d1034617e745995b950484faed909
>> Module
>> lib21_fts_squat_plugin.so with build-id
>> cc731fa9bf9cac2f890bbc1da598e958cb465d52
>> Module
>> libicudata.so.70 with build-id
>> e1dcc2a88cfaafed882d09c90c668af0eed4efed
>> Module libgcc_s.so.1
>> with build-id 7f8508bb914546ada778809b64b99d234337d835
>> Module libm.so.6 with
>> build-id 2b8fd1f869ecab4e0b55e92f2f151897f6818acf
>> Module libstdc++.so.6
>> with build-id 9b5eeeb149bf3c4efe787fb398b44f00507aec87
>> Module libicuuc.so.70
>> with build-id 2e245c2bf12f95fd8ab79b3a4be99524677cbd70
>> Module
>> libicui18n.so.70 with build-id
>> 95af755fca990df26753a7d720b8e3ae24270e42
>> Module
>> lib20_fts_plugin.so with build-id
>> 5b44deef3cd93f2cdac9a38ab3f5c4f1a2f48d40
>>
>> Module lib10_quota_plugin.so with
>> build-id 5fa33175575dcf45f4aead56c701fe58a19f0df8
>> Module
>> libpthread.so.0 with build-id
>> 07c8f95b4f3251d08550217ad8a1f31066229996
>>
>> Module libcrypto.so.1.1 with build-id
>> 4c926b672d97886b123e03a008387aecf0786de4
>> Module libssl.so.1.1 with
>> build-id 1024424ab33a3767da03f4fdb1fc1b02479f160f
>> Module
>> libssl_iostream_openssl.so with build-id
>> ba2cf9015fbabf8459896bd584379f2f566aaa51
>> Module ld-linux-x86-64.so.2 with build-id
>> 040cc3dd10461562f177df39e3be2f3704258c3c
>>
>> Module libdl.so.2 with build-id
>> 5abc547e7b0949f89f3c0e21ab0c8331a7440a8a
>> Module libc.so.6 with
>> build-id 4b406737057708c0e4c642345a703c47a61c73dc
>> Module
>> libdovecot.so.0 with build-id
>> 3f68ab1f1e0bffceea1c130e6b46f799eea45522
>>
>> Module
>> libdovecot-storage.so.0 with build-id
>> 3bf1e7c355c0c6184165e209f67b3a6627355401
>> Module
>> libdovecot-lda.so.0 with build-id
>> 54cc9d9face18809a95ccd5ee643330eed997d8b
>> Module lmtp with
>> build-id 7cc9238bb78e35771572aa3e31bdecf1cda5d754
>> Stack trace of thread 592878:
>> #0
>> 0x00007f5355153eed n/a (lib20_fts_plugin.so + 0x9eed)
>> #1
>> 0x00007f535515db30 fts_mailbox_allocated (lib20_fts_plugin.so +
>> 0x13b30)
>> #2
>> 0x00007f535595eb6d hook_mailbox_allocated (libdovecot-storage.so.0
>> + 0x60b6d)
>> #3
>> 0x00007f53559598ec mailbox_alloc (libdovecot-storage.so.0 + 0x5b8ec)
>> #4
>> 0x00007f5355959b5e mailbox_alloc_for_user (libdovecot-storage.so.0
>> + 0x5bb5e)
>> #5
>> 0x00007f5355a6d790 mail_deliver_save_open (libdovecot-lda.so.0 +
>> 0x4790)
>> #6
>> 0x00007f5355a6dbdc mail_deliver_save (libdovecot-lda.so.0 + 0x4bdc)
>> #7
>> 0x00007f5355a6e39a mail_deliver (libdovecot-lda.so.0 + 0x539a)
>> #8
>> 0x0000563d3a90bc2d lmtp_local_default_deliver (lmtp + 0x8c2d)
>> #9
>> 0x0000563d3a90c39f lmtp_local_data (lmtp + 0x939f)
>> #10
>> 0x0000563d3a90acc1 client_default_cmd_data (lmtp + 0x7cc1)
>> #11
>> 0x0000563d3a90aa31 cmd_data_continue (lmtp + 0x7a31)
>> #12
>> 0x00007f535579c3bf n/a (libdovecot.so.0 + 0x6d3bf)
>> #13
>> 0x00007f535579cc46 n/a (libdovecot.so.0 + 0x6dc46)
>> #14
>> 0x00007f53557a023e smtp_server_command_call_hooks (libdovecot.so.0
>> + 0x7123e)
>> #15
>> 0x00007f53557a07f1 smtp_server_command_next_to_reply
>> (libdovecot.so.0 + 0x717f1)
>> #16
>> 0x00007f53557a5b5b n/a (libdovecot.so.0 + 0x76b5b)
>> #17
>> 0x00007f535584469f io_loop_call_io (libdovecot.so.0 + 0x11569f)
>> #18
>> 0x00007f5355844787 io_loop_handler_run (libdovecot.so.0 + 0x115787)
>> #19
>> 0x00007f5355844919 io_loop_run (libdovecot.so.0 + 0x115919)
>> #20
>> 0x00007f53557b31d8 master_service_run (libdovecot.so.0 + 0x841d8)
>> #21
>> 0x0000563d3a909606 main (lmtp + 0x6606)
>> #22
>> 0x00007f535557bb25 __libc_start_main (libc.so.6 + 0x27b25)
>
> Thanks,
> Bryan Jacobs
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