[asterisk-bugs] [JIRA] (ASTERISK-24521) [patch] Segfault due to null pointer in ast_bridged_channel

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-24521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-24521:
------------------------------------

    Status: Open  (was: Triage)

> [patch] Segfault due to null pointer in ast_bridged_channel
> -----------------------------------------------------------
>
>                 Key: ASTERISK-24521
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24521
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Channels
>    Affects Versions: 11.8.1
>            Reporter: Ben Smithurst
>         Attachments: ast_bridged_channel.diff, backtrace.txt
>
>
> We have observed a crash in ast_bridged_channel due to a null pointer.  We do not know at present how to reproduce it, it is something we haven't really seen before but then saw several times in a single day.
> The cause appears to be a bridged channel existing without a 'tech' field, so the ast_bridged_channel function dereferences a null pointer, the fix is quite simple and seems to work for us, we've seen no further occurences of the crash.
> *Hopefully* I still have the backtrace/core file, but if not, as I say we don't know how to reproduce it, apologies.



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