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avcodec/vqavideo: Check chunk size
Fixes CID1239154 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -231,6 +231,12 @@ static int decode_format80(VqaContext *s, int src_size,
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unsigned char color;
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int i;
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if (src_size < 0 || src_size > bytestream2_get_bytes_left(&s->gb)) {
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av_log(s->avctx, AV_LOG_ERROR, "Chunk size %d is out of range\n",
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src_size);
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return AVERROR_INVALIDDATA;
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}
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start = bytestream2_tell(&s->gb);
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while (bytestream2_tell(&s->gb) - start < src_size) {
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opcode = bytestream2_get_byte(&s->gb);
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