[asterisk-bugs] [JIRA] (ASTERISK-27568) Crash in ast_channel_hangupcause when using chan_pjsip

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=241437#comment-241437 ] 

Asterisk Team commented on ASTERISK-27568:
------------------------------------------

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].

> Crash in ast_channel_hangupcause when using chan_pjsip
> ------------------------------------------------------
>
>                 Key: ASTERISK-27568
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27568
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip
>    Affects Versions: 13.18.5
>            Reporter: Bryan Walters
>              Labels: pjsip
>
> We've had reports from users of Asterisk 13.18.5 where asterisk will core dump pretty frequently when using chan_pjsip. Reviewing this with our team, it appears that that chan_pjsip_session_end checks session->channel for validity and later calls ast_channel_hangupcause(session->channel). However, between the time of the check and the call to ast_channel_hangupcause, something is setting session->channel to null, thus causing Asterisk to core dump.



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