From f408fc67c0bcd735ee2638d78cc4dcc3590bbb5b Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <kabi@informatics.muni.cz>
Date: Thu, 31 Oct 2002 20:22:30 +0000
Subject: [PATCH] * avoid negative numbers as well

Originally committed as revision 1134 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/wmadec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c
index 4fbbe39a4b..7505a9be3d 100644
--- a/libavcodec/wmadec.c
+++ b/libavcodec/wmadec.c
@@ -1282,7 +1282,7 @@ static int wma_decode_superframe(AVCodecContext *avctx,
         s->last_bitoffset = pos & 7;
         pos >>= 3;
         len = buf_size - pos;
-        if (len > MAX_CODED_SUPERFRAME_SIZE) {
+        if (len > MAX_CODED_SUPERFRAME_SIZE || len < 0) {
             return -1;
         }
         s->last_superframe_len = len;