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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-27 17:01:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-15 12:25:46 +0100 |
| commit | 4b4c26ca09b525168339df8697eb7f6bfe20345f (patch) | |
| tree | a9cb926df2b7cd0501cbcb6b2aadf3d9553d2a4f | |
| parent | d998b81ce17f3fd3416b8e065910c73c1415297f (diff) | |
| download | ffmpeg-4b4c26ca09b525168339df8697eb7f6bfe20345f.tar.gz | |
avcodec/g729postfilter: Fix undefined intermediate pointers
Fixes: index -49 out of bounds for type 'int16_t [192]'
Fixes: 17689/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-5756275014500352
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 0c61661a2cbe1b8b284c80ada1c2fdddf4992cad)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/g729postfilter.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/g729postfilter.c b/libavcodec/g729postfilter.c index e8e031a1ed..ef4fec4c95 100644 --- a/libavcodec/g729postfilter.c +++ b/libavcodec/g729postfilter.c @@ -201,8 +201,8 @@ static int16_t long_term_filter(AudioDSPContext *adsp, int pitch_delay_int, } if (corr_int_num) { /* Compute denominator of pseudo-normalized correlation R'(0). */ - corr_int_den = adsp->scalarproduct_int16(sig_scaled - best_delay_int + RES_PREV_DATA_SIZE, - sig_scaled - best_delay_int + RES_PREV_DATA_SIZE, + corr_int_den = adsp->scalarproduct_int16(sig_scaled + RES_PREV_DATA_SIZE - best_delay_int, + sig_scaled + RES_PREV_DATA_SIZE - best_delay_int, subframe_size); /* Compute signals with non-integer delay k (with 1/8 precision), |