From ed8ccbdb739b18ffbe426751fc084de4bfa4f2da Mon Sep 17 00:00:00 2001
From: Mark Michelson <mmichelson@digium.com>
Date: Mon, 27 Jul 2009 20:54:54 +0000
Subject: [PATCH] Gracefully handle malformed RTP text packets.
AST-2009-004
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@209235 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
res/res_rtp_asterisk.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index edf1d7272a..d281fa5153 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -2078,6 +2078,9 @@ static struct ast_frame *ast_rtp_read(struct ast_rtp_instance *instance, int rtc
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;
--
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