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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-28 00:11:50 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-12 16:46:06 +0200 |
| commit | 3055a0155b9475beddff848486da2fdc647d73f8 (patch) | |
| tree | ff7e3cc5b07dcf824d087ad4ad31403fc0fe6098 | |
| parent | 501f0aef5d9e6a55bb84b800c41694ea6f3585ed (diff) | |
| download | ffmpeg-3055a0155b9475beddff848486da2fdc647d73f8.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); } } |