From f7304e99d4ec4f7751adae65580694cef9613c30 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 23 Sep 2009 11:33:44 +0000
Subject: [PATCH] Check data_size in decode_frame_mp3on4().

Originally committed as revision 19987 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/mpegaudiodec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index 6f451c312a..3003e18040 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -2466,6 +2466,9 @@ static int decode_frame_mp3on4(AVCodecContext * avctx,
     OUT_INT *outptr, *bp;
     int fr, j, n;
 
+    if(*data_size < MPA_FRAME_SIZE * MPA_MAX_CHANNELS * s->frames * sizeof(OUT_INT))
+        return -1;
+
     *data_size = 0;
     // Discard too short frames
     if (buf_size < HEADER_SIZE)