[asterisk-bugs] [JIRA] (ASTERISK-22740) Confbridge fails to destroy conference on hangup leading to Asterisk segfault

[Simon Moxon (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-22740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=211099#comment-211099 ] 

Simon Moxon commented on ASTERISK-22740:
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License agreement signed, but currently awaiting approval.
                
> Confbridge fails to destroy conference on hangup leading to Asterisk segfault
> -----------------------------------------------------------------------------
>
>                 Key: ASTERISK-22740
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22740
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_confbridge
>    Affects Versions: 11.5.1
>            Reporter: Simon Moxon
>            Assignee: Simon Moxon
>         Attachments: ASTERISK-22740.diff
>
>
> With 3 users (1 marked, 2 unmarked) remaining in a conference, if 1 marked and 1 unmarked hangup at the exact same time leaving just the 1 unmarked in the conference.  
> Then when that final unmarked user leaves, the conference is not torn down.
> The following Error is logged:
> {{confbridge/conf_state.c: Invalid event for confbridge user}}
> If anything then tries to access that conference e.g. via confbridge list or re-creating the conference, then asterisk will segfault as referenced in [ASTERISK-21859]
> This only occurs is confbridge quiet=no.
> Recreating the bug without a large volume of calls is tricky as the hangups have tobe with 

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