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avcodec/flacdec: Check for invalid vlcs

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-12-09 16:29:35 +01:00
parent 8addd56554
commit fd00203554
1 changed files with 7 additions and 1 deletions
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8
libavcodec/flacdec.c
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@ -259,7 +259,13 @@ static int decode_residuals(FLACContext *s, int32_t *decoded, int pred_order)
*decoded++ = get_sbits_long(&s->gb, tmp);
} else {
for (; i < samples; i++) {
*decoded++ = get_sr_golomb_flac(&s->gb, tmp, INT_MAX, 0);
int v = get_sr_golomb_flac(&s->gb, tmp, INT_MAX, 0);
if (v == 0x80000000){
av_log(s->avctx, AV_LOG_ERROR, "invalid residual\n");
return AVERROR_INVALIDDATA;
}
*decoded++ = v;
}
}
i= 0;