[FFmpeg-cvslog] avcodec/dxtory: Fix input size check in dxtory_decode_v1_410()

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Nov 15 00:25:11 2015 +0100| [76b6f4b7d91901929177cc61d9810dcca0bb40c1] | committer: Michael Niedermayer

avcodec/dxtory: Fix input size check in dxtory_decode_v1_410()

Fixes potential out of array read

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=76b6f4b7d91901929177cc61d9810dcca0bb40c1
---

 libavcodec/dxtory.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dxtory.c b/libavcodec/dxtory.c
index 8a326b7..fc19369 100644
--- a/libavcodec/dxtory.c
+++ b/libavcodec/dxtory.c
@@ -65,7 +65,7 @@ static int dxtory_decode_v1_410(AVCodecContext *avctx, AVFrame *pic,
     uint8_t *Y1, *Y2, *Y3, *Y4, *U, *V;
     int ret;
 
-    if (src_size < avctx->width * avctx->height * 9LL / 8) {
+    if (src_size < FFALIGN(avctx->width, 4) * FFALIGN(avctx->height, 4) * 9LL / 8) {
         av_log(avctx, AV_LOG_ERROR, "packet too small\n");
         return AVERROR_INVALIDDATA;
     }