[asterisk-bugs] [JIRA] (ASTERISK-23391) Audit dialplan function usage of channel variable

[Corey Farrell (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-23391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=216916#comment-216916 ] 

Corey Farrell commented on ASTERISK-23391:
------------------------------------------

I am looking into this.

> Audit dialplan function usage of channel variable
> -------------------------------------------------
>
>                 Key: ASTERISK-23391
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23391
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Functions/General
>    Affects Versions: SVN, 1.8.25.0, 11.7.0, 12.0.0
>            Reporter: Corey Farrell
>            Assignee: Corey Farrell
>      Target Release: 1.8.27.0, 11.9.0, 12.2.0
>
>         Attachments: functions-check-chan-11.patch, functions-check-chan-12.patch, functions-check-chan-1.8.patch
>
>
> Dialplan functions can be called from AMI without a channel.  This allows some functions to be executed in the global context.  Some functions do not check for NULL channels and can crash when executed as a global function.



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