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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-27 17:01:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-06 11:30:43 +0100 |
| commit | fa9ca0b663c1768ab2a537f5a48a4eb35e66b447 (patch) | |
| tree | 4f8f711568bb9a60447772965760db87ddbb886f | |
| parent | 45e31d6dd0ba65674354f9798efece6d09128fc6 (diff) | |
| download | ffmpeg-fa9ca0b663c1768ab2a537f5a48a4eb35e66b447.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), |