From 352c6d8820007647a31abb8f2f83ea86527fef97 Mon Sep 17 00:00:00 2001
From: Mark Michelson <mmichelson@digium.com>
Date: Mon, 27 Jul 2009 20:57:55 +0000
Subject: [PATCH] Merged revisions 209235 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/trunk

........
  r209235 | mmichelson | 2009-07-27 15:54:54 -0500 (Mon, 27 Jul 2009) | 5 lines

  Gracefully handle malformed RTP text packets.

  AST-2009-004
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@209237 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/rtp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/main/rtp.c b/main/rtp.c
index 8a51050b91..bb73d253fc 100644
--- a/main/rtp.c
+++ b/main/rtp.c
@@ -1840,6 +1840,9 @@ struct ast_frame *ast_rtp_read(struct ast_rtp *rtp)
 
 		rtp->f.subclass = AST_FORMAT_T140;
 		header_end = memchr(data, ((*data) & 0x7f), rtp->f.datalen);
+		if (header_end == NULL) {
+			return &ast_null_frame;
+		}
 		header_end++;
 		
 		header_length = header_end - data;
-- 
2.47.2