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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-30 19:09:36 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:53:29 +0200 |
| commit | a0bda2923b0426984c6ed9d9ce127c6a165f9361 (patch) | |
| tree | edb258e628006cf43d06869cb03eeba4d2763a61 | |
| parent | b2c3461b57dbe6f5f0a5e74d69b31b4b4a2b71bd (diff) | |
| download | ffmpeg-a0bda2923b0426984c6ed9d9ce127c6a165f9361.tar.gz | |
avcodec/dcadsp: Fix integer overflow in dmix_add_c()
Fixes: signed integer overflow: 1515225320 + 759416059 cannot be represented in type 'int'
Fixes: 29256/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DCA_fuzzer-5719088561258496
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b4ebf483bcbf2e5db6bd29607142741f62598b4e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dcadsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dcadsp.c b/libavcodec/dcadsp.c index fade1a6c02..f97874fbe6 100644 --- a/libavcodec/dcadsp.c +++ b/libavcodec/dcadsp.c @@ -328,7 +328,7 @@ static void dmix_add_c(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t le int i; for (i = 0; i < len; i++) - dst[i] += mul15(src[i], coeff); + dst[i] += (unsigned)mul15(src[i], coeff); } static void dmix_scale_c(int32_t *dst, int scale, ptrdiff_t len) |