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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-22 20:18:40 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-25 02:32:33 +0100 |
| commit | 12a511f2c265d6319b7fdc332a6aa8aca1535309 (patch) | |
| tree | 3f0ee0ab9e458fe8589077ba6e746f26f20bc7e3 | |
| parent | 31de45d20b1ff90d4baf7c5a65e88f582efdb2a6 (diff) | |
| download | ffmpeg-12a511f2c265d6319b7fdc332a6aa8aca1535309.tar.gz | |
avcodec/sbrdsp_fixed: Fix integer overflow
Fixes: signed integer overflow: 2147483598 + 64 cannot be represented in type 'int'
Fixes: 4337/clusterfuzz-testcase-minimized-6192658616680448
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/sbrdsp_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/sbrdsp_fixed.c b/libavcodec/sbrdsp_fixed.c index a0ef6859f1..57d98da979 100644 --- a/libavcodec/sbrdsp_fixed.c +++ b/libavcodec/sbrdsp_fixed.c @@ -133,7 +133,7 @@ static av_always_inline SoftFloat autocorr_calc(int64_t accu) round = 1U << (nz-1); mant = (int)((accu + round) >> nz); - mant = (mant + 0x40)>>7; + mant = (mant + 0x40LL)>>7; mant *= 64; expo = nz + 15; return av_int2sf(mant, 30 - expo); |