From 11dfd1fa20fae31531a3c085cdcc00089dbcaa5f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 10 Nov 2014 19:44:20 +0100 Subject: [PATCH] avcodec/utvideodec: fix assumtation that slice_height >= 1 Fixes out of array read Fixes: asan_heap-oob_2573085_3783_utvideo_rgba_median.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer (cherry picked from commit 7656c4c6e66f8a787d384f027ad824cc1677fda1) Signed-off-by: Michael Niedermayer --- libavcodec/utvideodec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c index afd56ea1bd..05c943f808 100644 --- a/libavcodec/utvideodec.c +++ b/libavcodec/utvideodec.c @@ -224,7 +224,7 @@ static void restore_median(uint8_t *src, int step, int stride, A = bsrc[i]; } bsrc += stride; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride]; @@ -284,7 +284,7 @@ static void restore_median_il(uint8_t *src, int step, int stride, A = bsrc[stride + i]; } bsrc += stride2; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride2];