diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-28 00:11:50 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-09 18:34:49 +0200 |
| commit | ca5f10e0c39729b6b5ea3cccc36032777a3b94f8 (patch) | |
| tree | 0305ed927606ad4b1ea37fe1b9b56ded3972b728 | |
| parent | afe2a1a8c52d880f4862aa278a2c98b7f16c9fa7 (diff) | |
| download | ffmpeg-ca5f10e0c39729b6b5ea3cccc36032777a3b94f8.tar.gz | |
avcodec/apedec: Fix undefined integer overflow in long_filter_ehigh_3830()
Fixes: signed integer overflow: -2145648640 - 3357696 cannot be represented in type 'int'
Fixes: 38899/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5358815017566208
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 ad517ee6e44f093e28021ffd51c7eb2e1394b1a9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/apedec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 7db1196d3f..8a7ba73815 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -929,7 +929,7 @@ static void long_filter_ehigh_3830(int32_t *buffer, int length) for (j = 7; j > 0; j--) delay[j] = delay[j - 1]; delay[0] = buffer[i]; - buffer[i] -= dotprod >> 9; + buffer[i] -= (unsigned)(dotprod >> 9); } } |