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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-05 14:17:05 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-16 01:05:07 +0200 |
| commit | cd66606a8f9124a75a126d579c18f263b874d3a5 (patch) | |
| tree | cf2f2c6a5c35b312bc8f362ba28e62b0b3c44970 /libavcodec/bonk.c | |
| parent | ef3b42738b8081982498f5fb6b24593996045777 (diff) | |
| download | ffmpeg-cd66606a8f9124a75a126d579c18f263b874d3a5.tar.gz | |
avcodec/bonk: Fix undefined overflow in predictor_calc_error()
Fixes: signed integer overflow: -2146469728 - 1488954 cannot be represented in type 'int'
Fixes: 62490/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5612782399389696
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/bonk.c')
| -rw-r--r-- | libavcodec/bonk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/bonk.c b/libavcodec/bonk.c index 6cd6a0af61..65679e5fb6 100644 --- a/libavcodec/bonk.c +++ b/libavcodec/bonk.c @@ -270,7 +270,7 @@ static inline int shift(int a, int b) static int predictor_calc_error(int *k, int *state, int order, int error) { - int i, x = error - shift_down(k[order-1] * (unsigned)state[order-1], LATTICE_SHIFT); + int i, x = error - (unsigned)shift_down(k[order-1] * (unsigned)state[order-1], LATTICE_SHIFT); int *k_ptr = &(k[order-2]), *state_ptr = &(state[order-2]); |