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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-10 23:28:21 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-13 18:06:11 +0200 |
| commit | 48f7757749564dac8ad68d11fca13d0739aa2304 (patch) | |
| tree | bedf027168258bd6fcfd27ee535acdba6adc6cc1 | |
| parent | 2171dfae8c065878a2e130390eb78cf2947a5b69 (diff) | |
avcodec/wavpack: Fix runtime error: signed integer overflow: 2147483642 + 512 cannot be represented in type 'int'
Fixed: 1453/clusterfuzz-testcase-minimized-5024976874766336
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wavpack.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index d2ba97ee2c..87c065c1e7 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -433,8 +433,8 @@ static inline int wv_unpack_stereo(WavpackFrameContext *s, GetBitContext *gb, L2 = L + ((s->decorr[i].weightA * (int64_t)A + 512) >> 10); R2 = R + ((s->decorr[i].weightB * (int64_t)B + 512) >> 10); } else { - L2 = L + ((s->decorr[i].weightA * A + 512) >> 10); - R2 = R + ((s->decorr[i].weightB * B + 512) >> 10); + L2 = L + ((int)(s->decorr[i].weightA * A + 512U) >> 10); + R2 = R + ((int)(s->decorr[i].weightB * B + 512U) >> 10); } if (A && L) s->decorr[i].weightA -= ((((L ^ A) >> 30) & 2) - 1) * s->decorr[i].delta; |