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lagarith: always allocate for 4 planes. Fixes out of array accesses

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-12 17:35:01 +01:00
parent 87c113f4b3
commit 9eef41b848
1 changed files with 1 additions and 1 deletions
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libavcodec/lagarith.c
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@ -569,7 +569,7 @@ static int lag_decode_frame(AVCodecContext *avctx,
if (!l->rgb_planes) {
l->rgb_stride = FFALIGN(avctx->width, 16);
l->rgb_planes = av_malloc(l->rgb_stride * avctx->height * planes + 16);
l->rgb_planes = av_malloc(l->rgb_stride * avctx->height * 4 + 16);
if (!l->rgb_planes) {
av_log(avctx, AV_LOG_ERROR, "cannot allocate temporary buffer\n");
return AVERROR(ENOMEM);