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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-16 22:58:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-19 00:37:45 +0200 |
| commit | 4a02ae49c26395fc3ae2d38c733a2a13bd3080e7 (patch) | |
| tree | d41e56a39b7ee6dba2c4a344c0a30c64d859a8a4 | |
| parent | 6401a5d4b836a08090bc82e5d3101cc1873ae2a7 (diff) | |
| download | ffmpeg-4a02ae49c26395fc3ae2d38c733a2a13bd3080e7.tar.gz | |
avutil/fixed_dsp: Fix integer overflows in butterflies_fixed_c()
Fixes: signed integer overflow: 0 - -2147483648 cannot be represented in type 'int'
Fixes: 23646/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5480991098667008
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-- | libavutil/fixed_dsp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavutil/fixed_dsp.c b/libavutil/fixed_dsp.c index 8c018581df..f1b195f184 100644 --- a/libavutil/fixed_dsp.c +++ b/libavutil/fixed_dsp.c @@ -134,9 +134,10 @@ static int scalarproduct_fixed_c(const int *v1, const int *v2, int len) return (int)(p >> 31); } -static void butterflies_fixed_c(int *v1, int *v2, int len) +static void butterflies_fixed_c(int *v1s, int *v2, int len) { int i; + unsigned int *v1 = v1s; for (i = 0; i < len; i++){ int t = v1[i] - v2[i]; |