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authorMichael Niedermayer <michaelni@gmx.at>2012-04-20 17:42:18 +0200
committerAnton Khirnov <anton@khirnov.net>2012-09-29 19:18:07 +0200
commit85f477935cd6b34e6ec2716b20e15ce748277a89 (patch)
tree2c22933b385dfd406be1a7df8fe0ad7a52dcf7e6 /libavcodec/avs.c
parentd65d8347314b645051e336aed141aaf32a6c0d02 (diff)
downloadffmpeg-85f477935cd6b34e6ec2716b20e15ce748277a89.tar.gz
avsdec: Set dimensions instead of relying on the demuxer.
The decode function assumes that the video will have those dimensions. Fixes CVE-2012-2801 CC:libav-stable@libav.org Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/avs.c')
-rw-r--r--libavcodec/avs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/avs.c b/libavcodec/avs.c
index d4e2837212..b8ee1e1ff2 100644
--- a/libavcodec/avs.c
+++ b/libavcodec/avs.c
@@ -158,6 +158,7 @@ avs_decode_frame(AVCodecContext * avctx,
static av_cold int avs_decode_init(AVCodecContext * avctx)
{
avctx->pix_fmt = PIX_FMT_PAL8;
+ avcodec_set_dimensions(avctx, 318, 198);
return 0;
}