[asterisk-bugs] [JIRA] (ASTERISK-26216) res_fax: Deadlock when detect fax while channel executing Playback

[Asterisk Team (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-26216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Asterisk Team updated ASTERISK-26216:
-------------------------------------

    Target Release Version/s: 14.0.0

> res_fax: Deadlock when detect fax while channel executing Playback
> ------------------------------------------------------------------
>
>                 Key: ASTERISK-26216
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26216
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_dahdi, Channels/chan_pjsip, Channels/chan_sip/General, Resources/res_fax
>    Affects Versions: 13.9.1
>            Reporter: Richard Mudgett
>            Assignee: Richard Mudgett
>      Target Release: 14.0.0
>
>
> chan_dahdi, chan_pjsip, chan_sip, and FAXOPT(faxdetect) can all deadlock if the channel is executing the Playback or similar dialplan application that results in a masquerade being necessary to redirect to the fax extension when a fax is detected.  The ast_async_goto() function explicitly documents that the channel lock cannot be held when calling for this very reason.



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