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Summary:ASTERISK-16977: Segfault in handle_response_invite - chan_sip
Reporter:Matteo (mpiazzatnetbug)Labels:
Date Opened:2010-11-17 16:52:32.000-0600Date Closed:2011-07-27 12:50:20
Priority:CriticalRegression?No
Status:Closed/CompleteComponents:Channels/chan_sip/General
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) backtrace.txt
( 1) seg_fault_asterisk_1.4.26.3-handle_response.txt
Description:In one of my asterisk server running 1.4.26.3 I had a crash.
As attachment you will find the gdb output of the core file.

Program terminated with signal 11, Segmentation fault.
#0  0x00002aaaabd86ffe in handle_response_invite (p=0x2aaab127e960, resp=200, rest=0x40459ff4 "Ok", req=0x40459bc0, seqno=103) at chan_sip.c:12691
12691
Comments:By: Leif Madsen (lmadsen) 2010-12-06 13:51:25.000-0600

Marked as related to the other issue opened by this reporter as I can't tell if they are related or not.
By: Russell Bryant (russell) 2010-12-07 11:06:04.000-0600

Please upgrade to the latest version of 1.4 and let us know if you still have this problem.
By: Matteo (mpiazzatnetbug) 2010-12-14 01:38:42.000-0600

Hi, I had the same segfault on another installation, same asterisk version. I understand that 1.4.26 it's not the latestes version but upgrude production machine is not a light step. Unfortunatly I don't understand C code, I'm asking only little help to undestand the bug, maybe the bug is still there also in the latest version. As attachment the backtrace file (backtrace.txt)
By: Matteo (mpiazzatnetbug) 2010-12-29 03:22:12.000-0600

Hi,

These are the code line involved in the segfault

12659 if (bridgepeer->tech == &sip_tech || bridgepeer->tech == &sip_tech_info) {
12690 bridgepvt = (struct sip_pvt*)(bridgepeer->tech_pvt);
12691 if (bridgepvt->udptl) {

from the debug we can see:
bridgepvt = (struct sip_pvt *) 0x0
bridgepeer = (struct ast_channel *) 0xa214d0

I not undestand where is the starting point of the issue. I checked the code of 1.4.39-rc1 but for what I can see there is no difference in the code, at least for two/three step before this function into the code.
By: Russell Bryant (russell) 2011-07-27 12:50:11.013-0500

Per the Asterisk maintenance timeline page at http://www.asterisk.org/asterisk-versions maintenance (bug) support for the 1.4 and 1.6.x branches has ended. For continued maintenance support please move to the 1.8 branch which is a long term support (LTS) branch. For more information about branch support, please see https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions

If this is still an issue, please open a new issue so it can be re-triaged appropriately. Thanks!