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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-11 03:55:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-20 03:41:33 +0200 |
| commit | 4e2c1055a0a227ab6ddabbe2e15e18c4bb4f5a45 (patch) | |
| tree | 0ec86678bb22e7bb7b0d23b4a6a707dfd8af902b | |
| parent | e83d6c6819c7f088c18a4679e2b9b575383a215f (diff) | |
| download | ffmpeg-4e2c1055a0a227ab6ddabbe2e15e18c4bb4f5a45.tar.gz | |
avcodec/amrwbdec: Fix runtime error: left shift of negative value -1
Fixes: 763/clusterfuzz-testcase-6007567320875008
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 44e2105189ac66637f34c764febc349238250b1d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/amrwbdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/amrwbdec.c b/libavcodec/amrwbdec.c index fd99163e9f..c7a99ad320 100644 --- a/libavcodec/amrwbdec.c +++ b/libavcodec/amrwbdec.c @@ -265,7 +265,7 @@ static void decode_pitch_lag_high(int *lag_int, int *lag_frac, int pitch_index, *lag_frac = pitch_index - (*lag_int << 2) + 136; } else if (pitch_index < 440) { *lag_int = (pitch_index + 257 - 376) >> 1; - *lag_frac = (pitch_index - (*lag_int << 1) + 256 - 376) << 1; + *lag_frac = (pitch_index - (*lag_int << 1) + 256 - 376) * 2; /* the actual resolution is 1/2 but expressed as 1/4 */ } else { *lag_int = pitch_index - 280; |