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avformat/mov: Don't allow negative sample sizes.
Signed-off-by: Dale Curtis <dalecurtis@chromium.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 2d8d554f15a7a27cfeca81467cc9341a86f784e2) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -2873,6 +2873,10 @@ static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
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for (i = 0; i < entries && !pb->eof_reached; i++) {
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sc->sample_sizes[i] = get_bits_long(&gb, field_size);
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if (sc->sample_sizes[i] < 0) {
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av_log(c->fc, AV_LOG_ERROR, "Invalid sample size %d\n", sc->sample_sizes[i]);
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return AVERROR_INVALIDDATA;
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}
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sc->data_size += sc->sample_sizes[i];
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}
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