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indeo4: Check the quantization matrix index

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 6255ccf7d5)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato
2013-07-12 15:02:33 +02:00
committed by Sean McGovern
parent ba5dfc25ee
commit 06c52faef2
1 changed files with 5 additions and 0 deletions
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5
libavcodec/indeo4.c
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@@ -361,6 +361,11 @@ static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,
av_log(avctx, AV_LOG_ERROR, "Custom quant matrix encountered!\n");
return AVERROR_INVALIDDATA;
}
if (band->quant_mat >= FF_ARRAY_ELEMS(quant_index_to_tab)) {
av_log_ask_for_sample(avctx, "Quantization matrix %d",
band->quant_mat);
return AVERROR_INVALIDDATA;
}
}
/* decode block huffman codebook */