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avcodec/dca_xll: signed integer overflow: 255251 * 32768 cannot be represented in type 'int' 

Fixes: 627/clusterfuzz-testcase-5020897033322496
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 2017-02-20 20:22:26 +01:00
parent 4614bf2caf
commit e04108dfa6
1 changed files with 2 additions and 2 deletions
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4
libavcodec/dca_xll.c
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@ -1446,11 +1446,11 @@ int ff_dca_xll_filter_frame(DCAXllDecoder *s, AVFrame *frame)
if (frame->format == AV_SAMPLE_FMT_S16P) {
int16_t *plane = (int16_t *)frame->extended_data[i];
for (k = 0; k < nsamples; k++)
plane[k] = av_clip_int16(samples[k] * (1 << shift));
plane[k] = av_clip_int16(samples[k] * (SUINT)(1 << shift));
} else {
int32_t *plane = (int32_t *)frame->extended_data[i];
for (k = 0; k < nsamples; k++)
plane[k] = clip23(samples[k] * (1 << shift)) * (1 << 8);
plane[k] = clip23(samples[k] * (SUINT)(1 << shift)) * (1 << 8);
}
}