From 59afda9f61c8d3b23699e72939858ce25b4ed2a8 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 27 Jan 2009 21:01:47 +0000 Subject: [PATCH] better header_size check Originally committed as revision 16830 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 af57c6c5b6..30d240310c 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 || size < 4) + if (fourcc_tag != HEAD_TAG || header_size < 0) return AVERROR_INVALIDDATA; /* allocate space for the header and load the whole thing */