From 6e24b9488e67849a28e64a8056e05f83cf439229 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 18 Nov 2011 19:10:21 +0100
Subject: [PATCH] svq1dec: call avcodec_set_dimensions() after dimensions
changed.
Fixes NGS00148, CVE-2011-4579
Found-by: Phillip Langlois
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/svq1dec.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 7eb6e607d14..69dbd1b25d5 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -659,6 +659,7 @@ static int svq1_decode_frame(AVCodecContext *avctx,
av_dlog(s->avctx, "Error in svq1_decode_frame_header %i\n",result);
return result;
}
+ avcodec_set_dimensions(avctx, s->width, s->height);
//FIXME this avoids some confusion for "B frames" without 2 references
//this should be removed after libavcodec can handle more flexible picture types & ordering
--
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