[asterisk-commits] tilghman: branch tilghman/malloc_hold r209448 - /team/tilghman/malloc_hold/main/

[SVN commits to the Asterisk project]

Author: tilghman
Date: Tue Jul 28 21:32:07 2009
New Revision: 209448

URL: http://svn.asterisk.org/svn-view/asterisk?view=rev&rev=209448
Log:
Protect against NULL deref

Modified:
    team/tilghman/malloc_hold/main/astmm.c

Modified: team/tilghman/malloc_hold/main/astmm.c
URL: http://svn.asterisk.org/svn-view/asterisk/team/tilghman/malloc_hold/main/astmm.c?view=diff&rev=209448&r1=209447&r2=209448
==============================================================================
--- team/tilghman/malloc_hold/main/astmm.c (original)
+++ team/tilghman/malloc_hold/main/astmm.c Tue Jul 28 21:32:07 2009
@@ -769,7 +769,7 @@
 
 	ast_mutex_lock(&reglock);
 
-	if (isfree) {
+	if (isfree && master) {
 		MPROTECT(master, sizeof(*master), PROT_READ);
 		ast_cli(fd, "Top item on the free list has a date of %d (now is %d) and it %s\n", master->freetime, (int) time(NULL), time(NULL) > master->freetime + HOLD_LENGTH ? "is already past due (BAD!)" : "hasn't expired yet");
 	}