[asterisk-bugs] [Asterisk 0015392]: [patch] 1.6.1.1: Memory handling error in main/pbx.c (pbx_extension_helper)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15392 
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Reported By:                yrashk
Assigned To:                
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Project:                    Asterisk
Issue ID:                   15392
Category:                   PBX/General
Reproducibility:            always
Severity:                   block
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.1.1 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-06-24 19:25 CDT
Last Modified:              2009-06-24 19:28 CDT
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Summary:                    [patch] 1.6.1.1: Memory handling error in main/pbx.c
(pbx_extension_helper)
Description: 
Due to Solaris x64 specifics, it won't accept NULLs as string. I think
Asterisk had similar problems before, and apparently it is still doing this
in some places. I found one of them today, since it was blocking asterisk
to start.

Basically, asterisk was segfaulting on every start, on the strlen()
routine.

Attached you can find gdb analysis on a core dumped and a patch that
solves this problem
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 (0106959) yrashk (reporter) - 2009-06-24 19:28
 https://issues.asterisk.org/view.php?id=15392#c106959 
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The patch is:

--- old/asterisk-1.6.1.1/main/pbx.c	Fri Apr 17 10:33:27 2009
+++ asterisk-1.6.1.1/main/pbx.c	Thu Jun 25 16:31:23 2009
@@ -3143,6 +3143,9 @@
 
 	int matching_action = (action == E_MATCH || action == E_CANMATCH ||
action == E_MATCHMORE);
 
+
+        context = context ? context : ""; /* Context should not be NULL
*/
+
 	ast_rdlock_contexts();
 	if (found)
 		*found = 0; 

Issue History 
Date Modified    Username       Field                    Change               
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2009-06-24 19:28 yrashk         Note Added: 0106959                          
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