[asterisk-bugs] [Asterisk 0017642]: Asterisk crash if T.38 negotiation timed out

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17642 
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Reported By:                Alekz
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17642
Category:                   Resources/res_fax
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
Asterisk Version:           Addons-1.6.1 - SECURITY ONLY! 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-07-14 08:14 CDT
Last Modified:              2010-07-14 10:59 CDT
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Summary:                    Asterisk crash if T.38 negotiation timed out
Description: 
We've got Asterisk 1.6.1.20 and FAX For Asterisk Components:
        Applications: 1.6.1.5_1.2.0
        Digium FAX Driver: 1.6.1.5_1.2.0 (optimized for i686_32)

Each time foreign SIP-proxy hangs during T.38 negotiation we've got
Asterisk crash:

NOTICE[5697]: res_fax.c:1083 receivefax_t38_init: Negotiating T.38 for
receive on SIP/teleleoffice-000000be
    -- SIP/dial_out-000000bc answered SIP/vocal-000000bb
    -- Packet2Packet bridging SIP/vocal-000000bb and
SIP/dial_out-000000bc
WARNING[5697]: res_fax.c:1103 receivefax_t38_init: channel
'SIP/teleleoffice-000000be' timed-out during the T.38 negotiation.
    -- Channel 'SIP/teleleoffice-000000be' FAX session '20' started
config136*CLI>
Disconnected from Asterisk server
Executing last minute cleanups
Asterisk ending (0).

Linux config136 2.6.29-gentoo-r5 https://issues.asterisk.org/view.php?id=2 SMP
Wed Jun 24 16:53:44 MSD 2009 i686
Intel(R) Xeon(TM) CPU 3.00GHz GenuineIntel GNU/Linux

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---------------------------------------------------------------------- 
 (0124552) lmadsen (administrator) - 2010-07-14 10:59
 https://issues.asterisk.org/view.php?id=17642#c124552 
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Asterisk 1.6.1.x is no longer supported other than for security issues.
Please attempt to reproduce with 1.6.2.x and provide a backtrace per the
instructions in the doc/backtrace.txt file located within the Asterisk
source.

---

Per the Asterisk maintenance timeline page at
http://www.asterisk.org/asterisk-versions maintenance (bug) support for the
1.6.0 and 1.6.1 branches has ended. For continued maintenance support
please move to the 1.6.2 branch.

More information on this change can be found in the release announcement:
http://www.asterisk.org/node/49924 

Issue History 
Date Modified    Username       Field                    Change               
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2010-07-14 10:59 lmadsen        Note Added: 0124552                          
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