From a6f730730b82645a9d31aad0968487cb77d6946c Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 3 Dec 2014 20:01:18 +0100
Subject: [PATCH] avformat/rmdec: Check codec_data_size
Fixes infinite loop
Fixes Ticket4154
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavformat/rmdec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index c46b53f335..19bd7a7a0b 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -312,6 +312,9 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
int64_t codec_pos;
int ret;
+ if (codec_data_size < 0)
+ return AVERROR_INVALIDDATA;
+
avpriv_set_pts_info(st, 64, 1, 1000);
codec_pos = avio_tell(pb);
v = avio_rb32(pb);