mirror of https://git.ffmpeg.org/ffmpeg.git
tiffdec: check rps, fix infinite loop.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -1089,6 +1089,11 @@ static int decode_frame(AVCodecContext *avctx,
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bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
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}
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if (s->rps <= 0) {
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av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
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return AVERROR_INVALIDDATA;
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}
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for (i = 0; i < s->height; i += s->rps) {
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if (s->stripsizesoff)
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ssize = tget(&stripsizes, s->sstype, s->le);
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