[asterisk-bugs] [JIRA] (ASTERISK-25486) res_pjsip: Fix deadlock when validating URIs

[Joshua Colp (JIRA)]

Joshua Colp created ASTERISK-25486:
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             Summary: res_pjsip: Fix deadlock when validating URIs
                 Key: ASTERISK-25486
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25486
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_pjsip
    Affects Versions: 13.6.0
            Reporter: Joshua Colp


In a realtime based system with a limited number of threadpool threads it is possible for a deadlock to occur. This happens when permanent endpoint state is updated, which will cause database queries to be done. These queries may result in URI validation being done which is done synchronously using a PJSIP thread. If all PJSIP threads are in use processing traffic they themselves may be blocked waiting to get the permanent endpoint container lock when identifying an endpoint.



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