mirror of https://git.ffmpeg.org/ffmpeg.git
vqavideodev: Check image dimensions
Fixes out of heap array read Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -164,6 +164,11 @@ static av_cold int vqa_decode_init(AVCodecContext *avctx)
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if (!s->next_codebook_buffer)
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goto fail;
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if (s->width % s->vector_width || s->height % s->vector_height) {
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av_log(avctx, AV_LOG_ERROR, "Picture dimensions are not a multiple of the vector size\n");
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goto fail;
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}
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/* allocate decode buffer */
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s->decode_buffer_size = (s->width / s->vector_width) *
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(s->height / s->vector_height) * 2;
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