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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-07 19:24:10 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-05 01:47:56 +0200 |
| commit | 7a00fd49649e40a17cf567e0e48be61c0c24e4c5 (patch) | |
| tree | 6df8dcbb262a3561188aa3e6100bee3d8af3b6db | |
| parent | 1a74a8078cedbf7ad1bc33e8c4c029913217b50b (diff) | |
| download | ffmpeg-7a00fd49649e40a17cf567e0e48be61c0c24e4c5.tar.gz | |
avcodec/lossless_audiodsp: Fix undefined overflows in scalarproduct_and_madd_int16_c()
Fixes: signed integer overflow: 2142077091 + 6881070 cannot be represented in type 'int'
Fixes: 22737/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5958388889681920
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 c0dfe134beefde4070d43910518b1f4a58f01794)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/lossless_audiodsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/lossless_audiodsp.c b/libavcodec/lossless_audiodsp.c index 3a9f9b20bb..378165924d 100644 --- a/libavcodec/lossless_audiodsp.c +++ b/libavcodec/lossless_audiodsp.c @@ -27,7 +27,7 @@ static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2, const int16_t *v3, int order, int mul) { - int res = 0; + unsigned res = 0; do { res += *v1 * *v2++; |