[BUG] Dovecot 2.2.22 lmtp child killed with signal 11

[Timo Sirainen]

On 20 Mar 2016, at 19:31, Andreas Jobs <andreas.jobs at ruhr-uni-bochum.de> wrote:
> 
> Hello,
> 
> after upgrading to 2.2.22 the lmtp service is crashing (segfault) a few
> times per hours.
> 
> From the logs:
> Mar 19 16:37:29 lmtp(redacted at ruhr-uni-bochum.de): Info: ohZXLe1x7VaUeQAAEc+Mrg: sieve: msgid=<redacted at async.facebook.com>: discarding vacation response to mailinglist recipient <redacted at facebookmail.com>
> Mar 19 16:37:29 lmtp(31124): Info: Disconnect from 134.147.42.228: Successful quit
> Mar 19 16:37:29 lmtp(31124): Fatal: master: service(lmtp): child 31124 killed with signal 11 (core dumped)
> 
> All those crashes have either a "send vacation response" or a
> "discarnding vacation response" in common.
> 
> I'll attach a backtrace and the current configuration.

I don't know why vacation would affect this, but these should fix the crash:

https://github.com/dovecot/core/commit/421973339968d444d4433cb4d47d1f150e4ab288.patch
https://github.com/dovecot/core/commit/65d8efa66dca27db85f74ee2574188b51569a4c2.patch