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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-15 03:38:37 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-07 23:38:06 +0100 |
| commit | 4942de6f9385b5221fb5f230573e954709cb82d6 (patch) | |
| tree | 1dc97d92c032d4f71d0fb7cea126e5c5663c9992 | |
| parent | cc9d1bb839229edf0f4e97e59d6e7f9d90603439 (diff) | |
| download | ffmpeg-4942de6f9385b5221fb5f230573e954709cb82d6.tar.gz | |
avcodec/mlpdsp: Fix undefined shift ff_mlp_pack_output()
Fixes: runtime error: left shift of negative value -7862264
Fixes: 4074/clusterfuzz-testcase-minimized-4516104123711488
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 4f7f70738e8dd77a698a5e28bba552ea7064af21)
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 fbafa92d72..4e3a16c781 100644 --- a/libavcodec/mlpdsp.c +++ b/libavcodec/mlpdsp.c @@ -117,7 +117,7 @@ int32_t ff_mlp_pack_output(int32_t lossless_check_data, (1U << output_shift[mat_ch]); lossless_check_data ^= (sample & 0xffffff) << mat_ch; if (is32) - *data_32++ = sample << 8; + *data_32++ = sample * 256; else *data_16++ = sample >> 8; } |