Merged revisions 116978 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r116978 | russell | 2008-05-18 22:44:04 -0500 (Sun, 18 May 2008) | 4 lines

Avoid access of uninitialized memory.  This caused a bunch of crashes for me
while doing load testing of development branch where I'm working on some
performance improvements.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@116979 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_iax2.c

@@ -7955,7 +7955,7 @@ static int socket_process(struct iax2_thread *thread)
 
 	/* allocate an iax_frame with 4096 bytes of data buffer */
 	fr = alloca(sizeof(*fr) + 4096);
-	fr->callno = 0;
+	memset(fr, 0, sizeof(*fr));
 	fr->afdatalen = 4096; /* From alloca() above */
 
 	/* Copy frequently used parameters to the stack */