From 1851e1d05d06f6ef3436c667e4354da0f407b226 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Wed, 31 Jul 2013 12:45:33 +0300
Subject: [PATCH] rtpproto: Check the size before reading buf[1]
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I doubt that anyone ever would try to send a 1 byte packet
via the RTP protocol, but check just in case - it shouldn't
crash at least.

Signed-off-by: Martin Storsjö <martin@martin.st>
---
 libavformat/rtpproto.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c
index 4e177b9..b21c121 100644
--- a/libavformat/rtpproto.c
+++ b/libavformat/rtpproto.c
@@ -368,6 +368,9 @@ static int rtp_write(URLContext *h, const uint8_t *buf, int size)
     int ret;
     URLContext *hd;
 
+    if (size < 2)
+        return AVERROR(EINVAL);
+
     if (RTP_PT_IS_RTCP(buf[1])) {
         /* RTCP payload type */
         hd = s->rtcp_hd;
-- 
2.7.4