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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-02-01 23:25:42 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-01 13:33:44 +0200 |
| commit | 09cd4dbb8838728637305cdec366236cc8dd29ed (patch) | |
| tree | d7e5e0059db28a59265faa673814087a86edfc10 | |
| parent | 597c91c9e0f0fac7b85038a77cf74b965da52350 (diff) | |
| download | ffmpeg-09cd4dbb8838728637305cdec366236cc8dd29ed.tar.gz | |
avcodec/mlpdsp: Fix a invalid shift in ff_mlp_rematrix_channel()
Fixes: left shift of negative value -2
Fixes: 20305/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEHD_fuzzer-5677196618498048
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Jai Luthra <me@jailuthra.in>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fcc9f13717c8c3fe08ca5caf957c39e76ea35e4f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mlpdsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mlpdsp.c b/libavcodec/mlpdsp.c index 32a4503b64..12bef3a721 100644 --- a/libavcodec/mlpdsp.c +++ b/libavcodec/mlpdsp.c @@ -79,7 +79,7 @@ void ff_mlp_rematrix_channel(int32_t *samples, if (matrix_noise_shift) { index &= access_unit_size_pow2 - 1; - accum += noise_buffer[index] << (matrix_noise_shift + 7); + accum += noise_buffer[index] * (1 << (matrix_noise_shift + 7)); index += index2; } |