[asterisk-bugs] [JIRA] (ASTERISK-22902) Crash when setting RTCP property on RTP instance

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-22902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=212218#comment-212218 ] 

Matt Jordan commented on ASTERISK-22902:
----------------------------------------

The place where this is crashing is pretty odd:

{noformat}
	if (instance->engine->prop_set) {
{noformat}

I can only see this crashing if the {{instance}} pointer is garbage; or if {{engine}} is NULL or garbage.

In both cases, this is highly strange.

If you still have the {{core}} file, please do the following:

# Open it up in {{gdb}}. You should be able to do this using something like: {{gdb -se asterisk -c \[core file name\]}}
# GDB should show that it loads the symbols. Go to frame 0: {{frame 0}}
# Print the value of instance: {{print *instance}}
# If that prints out something valid, also print out the value of engine: {{print instance->engine}}

                
> Crash when setting RTCP property on RTP instance
> ------------------------------------------------
>
>                 Key: ASTERISK-22902
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22902
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General, Core/RTP
>    Affects Versions: 11.6.0
>         Environment: Linux Debian 7.0
>            Reporter: Private Name
>            Severity: Critical
>         Attachments: backtrace.txt
>
>
> Asterisk crashed and I got a full trace. I am uploading it shortly
> \[edit: mjordan\]
> The crash occurs during setting up an early bridge between two SIP channels. It appears to be occurring when the RTCP property is being set on a SIP pvt's RTP instance.

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