[asterisk-bugs] [JIRA] (ASTERISK-28510) Asterisk crashing on dtls handshake

[Jørgen Ligaard Sørensen (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=247800#comment-247800 ] 

Jørgen Ligaard Sørensen commented on ASTERISK-28510:
----------------------------------------------------

Ok. I'll try to get a new build running sometime next week and see if that helps.
Meanwhile, I've done some digging around, and the issue seems to be restricted to INVITEs where the SDP has ice-candidates using a host name rather than an IP.
Still havn't figured out exactly how to reproduce it, but we're increasing our logging in an attempt to narrow down the specifics

> Asterisk crashing on dtls handshake
> -----------------------------------
>
>                 Key: ASTERISK-28510
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28510
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: 16.5.0
>         Environment: Ubuntu 16.04.1
>            Reporter: Jørgen Ligaard Sørensen
>            Assignee: Jørgen Ligaard Sørensen
>            Severity: Critical
>              Labels: pjsip
>         Attachments: core.asterisk.29-brief.txt, core.asterisk.29-full.txt, core.asterisk.29-locks.txt, core.asterisk.29-thread1.txt
>
>
> We have observed several occurences of Asterisk crashing after recently changing our dial-plan to PJSIP. 
> We've not found any direct way to reproduce the problem, but it does seem to be restricted to high trafic hours - however there doesn't seem to be any particular threshold that causes the crash.
> For every occurence we've observed the following entries occur in the log immediately prior to the crash.
> [Aug 21 12:18:19] VERBOSE[9439][C-000001c8] res_rtp_asterisk.c: 0x7f5682408ca0 -- Strict RTP switching to RTP target address 194.247.61.32:25184 as source
> [Aug 21 12:18:19] ERROR[74] pjproject: 	   icess0x7f568244d588 ...Error sending STUN request: Invalid argument
> [Aug 21 12:18:19] ERROR[137] pjproject: 	   icess0x7f568244d588 ..Error sending STUN request: Invalid argument
> [Aug 21 12:18:19] ERROR[137] pjproject: 	   icess0x7f568244d588 ..Error sending STUN request: Invalid argument
> After enabling backtraces we're also seeing the same consistent backtrace for how the error occurs (res_rtp_asterisk.c).



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