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cdgraphics: Fix out of array write

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Fixes Ticket1359

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-05-28 16:50:15 +02:00
parent 83de4f5fc9
commit 1e5c7376c4
1 changed files with 4 additions and 0 deletions
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4
libavcodec/cdgraphics.c
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@ -280,6 +280,10 @@ static int cdg_decode_frame(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "buffer too small for decoder\n");
return AVERROR(EINVAL);
}
if (buf_size > CDG_HEADER_SIZE + CDG_DATA_SIZE) {
av_log(avctx, AV_LOG_ERROR, "buffer too big for decoder\n");
return AVERROR(EINVAL);
}
ret = avctx->reget_buffer(avctx, &cc->frame);
if (ret) {