[SCM] libav/experimental: huffyuvdec: check width size for yuv422p
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Aug 10 16:04:13 UTC 2014
The following commit has been merged in the experimental branch:
commit a7153444df9040bf6ae103e0bbf6104b66f974cb
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Sun Aug 3 00:54:33 2014 +0100
huffyuvdec: check width size for yuv422p
Avoid out of array accesses.
CC: libav-stable at libav.org
Bug-Id: CVE-2013-0848
Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>
Signed-off-by: Anton Khirnov <anton at khirnov.net>
diff --git a/libavcodec/huffyuvdec.c b/libavcodec/huffyuvdec.c
index dc99d19..d8f31d3 100644
--- a/libavcodec/huffyuvdec.c
+++ b/libavcodec/huffyuvdec.c
@@ -341,6 +341,13 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
+ if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P &&
+ avctx->width % 4) {
+ av_log(avctx, AV_LOG_ERROR, "width must be multiple of 4 "
+ "for this combination of colorspace and predictor type.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if ((ret = ff_huffyuv_alloc_temp(s)) < 0)
return ret;
--
Libav/FFmpeg packaging
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