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

[Simon Moxon (JIRA)]

Simon Moxon created ASTERISK-22740:
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             Summary: 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


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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