[asterisk-bugs] [JIRA] (ASTERISK-27617) Frack (crash), excessive refcount during Jitterbuffer operation

[Colin (JIRA)]

Colin created ASTERISK-27617:
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             Summary: Frack (crash), excessive refcount during Jitterbuffer operation
                 Key: ASTERISK-27617
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27617
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Core/Jitterbuffer
    Affects Versions: 14.6.0
         Environment: Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-109-generic x86_64) 
 

            Reporter: Colin


During an __ast_read operation on a pushed frame (in abstract_jb::hook_event_cb()), the reference count on the ast_frame_subclass resulted in a FRACK, and system crash. 

The referenced field which triggered the failed assert was out->subclass.format - a reference to the Asterisk media format. Bumping this causes the EXCESSIVE_REF_COUNT to be exceeded.






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