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avcodec/dca_xll: Fix runtime error: signed integer overflow: 1762028192 + 698372290 cannot be represented in type 'int'

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Fixes: 762/clusterfuzz-testcase-5927683747741696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-03-11 03:38:01 +01:00
parent 47cc9c1d77
commit f4c2302ee2
1 changed files with 1 additions and 1 deletions
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2
libavcodec/dca_xll.c
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@ -658,7 +658,7 @@ static void chs_filter_band_data(DCAXllDecoder *s, DCAXllChSet *c, int band)
// Inverse fixed coefficient prediction
for (j = 0; j < b->fixed_pred_order[i]; j++)
for (k = 1; k < nsamples; k++)
buf[k] += buf[k - 1];
buf[k] += (unsigned)buf[k - 1];
}
}