[asterisk-bugs] [JIRA] (ASTERISK-22483) AST_LIST_INSERT_TAIL doesn't set field.next on added entry

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-22483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-22483:
------------------------------------

    Status: Open  (was: Triage)
    
> AST_LIST_INSERT_TAIL doesn't set field.next on added entry
> ----------------------------------------------------------
>
>                 Key: ASTERISK-22483
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22483
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Functions/func_config
>    Affects Versions: 11.5.1
>         Environment: FreeBSD 9.1, i386
>            Reporter: Brian Scott
>            Assignee: Rusty Newton
>            Severity: Minor
>
> AST_LIST_INSERT_TAIL macro in include/asterisk/linkedlists.h doesn't set field.next to NULL when adding new entries to the tail of the list.
> Multiple calls to AST_CONFIG (for different files) in the dialplan causes Asterisk to crash in func_config with a memory error.
> Code appears to assume that malloc'ed memory would be initialised to NULL. This isn't a safe assumption on some systems (in this case FreeBSD).
> A trivial patch is available or you can work out where the (elm)->field.next = NULL; goes for yourself.
> Thanks

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