[asterisk-bugs] [JIRA] (ASTERISK-20784) Failure to receive an ACK to a SIP Re-INVITE results in a SIP channel leak

[NITESH BANSAL (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

NITESH BANSAL updated ASTERISK-20784:
-------------------------------------

    Attachment: patch_asterisk_20784.txt

I have fixed the issue, attached is the patch file.
Patch detects the non-critical invite transaction times out, and clears the invite pending and checks for any pending messages.
                
> Failure to receive an ACK to a SIP Re-INVITE results in a SIP channel leak
> --------------------------------------------------------------------------
>
>                 Key: ASTERISK-20784
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20784
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: SVN
>         Environment: Debian squeeze x86_64
>            Reporter: NITESH BANSAL
>         Attachments: patch_asterisk_20784.txt
>
>
> A INVITE> asterisk INVITE> B
> A <200 OK asterisk <200 OK B
> A -ACK-> asterisk --ACK--> B
> asterisk <INVITE B
> asterisk 200 OK> B
> (ack lost)
> A -BYE--> asterisk
> A <200 OK asterisk
> No bye is generated on the B leg and there is a hanging sip channel also.
> This issue was detected as regression of the issue ASTERISK-15879

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