[asterisk-bugs] [Asterisk 0014362]: [patch] Putting a comma in an extension dialpattern causes eventual seg fault

Asterisk Bug Tracker noreply at bugs.digium.com
Mon Feb 2 10:55:27 CST 2009


A NOTE has been added to this issue. 
====================================================================== 
http://bugs.digium.com/view.php?id=14362 
====================================================================== 
Reported By:                Nick_Lewis
Assigned To:                Corydon76
====================================================================== 
Project:                    Asterisk
Issue ID:                   14362
Category:                   Core/PBX
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.6.1-beta4 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2009-01-29 07:25 CST
Last Modified:              2009-02-02 10:55 CST
====================================================================== 
Summary:                    [patch] Putting a comma in an extension dialpattern
causes eventual seg fault
Description: 
If there is erroneously a comma in an extension dialpattern such as 

_9[1-3,5-9]. 

this leads some time later to a segmentation fault by various *s2=???
assignments in add_exten_to_pattern_tree() of pbx.c

There looks to be a string-unbounded while loop causing it 
====================================================================== 

---------------------------------------------------------------------- 
 (0099223) Nick_Lewis (reporter) - 2009-02-02 10:55
 http://bugs.digium.com/view.php?id=14362#c99223 
---------------------------------------------------------------------- 
Test Config & Results

[from-internal]
exten => _123,1,noop(ending here)
exten => 456,1,noop(starting here)
exten => 456,2,Goto(_123,1)

CLI>
-- Executing [456 at from-internal:1] NoOp("SIP/1001-b760b9b8", "starting
here") in new stack
-- Executing [456 at from-internal:2] Goto("SIP/1001-b760b9b8", "_123,1") in
new stack
-- Goto (from-internal,_123,1)
-- Executing [_123 at from-internal:1] NoOp("SIP/1001-b760b9b8", "ending
here") in new stack 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-02-02 10:55 Nick_Lewis     Note Added: 0099223                          
======================================================================




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