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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-11-15 00:25:11 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-06 12:40:49 +0100 |
| commit | 0814b140b1d7d6d324cb76b863b9cbc8f62abd58 (patch) | |
| tree | 39ee7ddab27ed29d8a0892a1c944342eb7720244 | |
| parent | 3879202d68ce327416806f650f3d8bf63a4cd83a (diff) | |
| download | ffmpeg-0814b140b1d7d6d324cb76b863b9cbc8f62abd58.tar.gz | |
avcodec/dxtory: Fix input size check in dxtory_decode_v1_420()
Fixes out of array read
Fixes: c50c4aa6cefda71b19a31ea12302980c/asan_heap-oob_12be5fd_7011_33ebd015a74976215934add72b9c8352.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9caa9414ccf2dcf8aee2695377dee830a5024c82)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dxtory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dxtory.c b/libavcodec/dxtory.c index 5e32107756..b89a45ff63 100644 --- a/libavcodec/dxtory.c +++ b/libavcodec/dxtory.c @@ -108,7 +108,7 @@ static int dxtory_decode_v1_420(AVCodecContext *avctx, AVFrame *pic, uint8_t *Y1, *Y2, *U, *V; int ret; - if (src_size < avctx->width * avctx->height * 3LL / 2) { + if (src_size < FFALIGN(avctx->width, 2) * FFALIGN(avctx->height, 2) * 3LL / 2) { av_log(avctx, AV_LOG_ERROR, "packet too small\n"); return AVERROR_INVALIDDATA; } |