From 4698bb245740d53477a0109e96fb4c67338078da Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 27 Jan 2009 20:51:10 +0000
Subject: [PATCH] size < 4 is invalid
Originally committed as revision 16829 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/4xm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index c792a776ef7..af57c6c5b61 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -114,7 +114,7 @@ static int fourxm_read_header(AVFormatContext *s,
/* check for LIST-HEAD */
GET_LIST_HEADER();
header_size = size - 4;
- if (fourcc_tag != HEAD_TAG)
+ if (fourcc_tag != HEAD_TAG || size < 4)
return AVERROR_INVALIDDATA;
/* allocate space for the header and load the whole thing */
--
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