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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-06-03 02:00:51 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-09-14 22:00:17 +0200 |
| commit | 2b25a5168e562676b299ef0f5a086e046833de4c (patch) | |
| tree | 58ef4ae06ec44ecb3ae4297f495ac41158415be2 | |
| parent | c012d1f2bb8735f2b17ce88cd8181d2ffc989b02 (diff) | |
| download | ffmpeg-2b25a5168e562676b299ef0f5a086e046833de4c.tar.gz | |
avcodec/bonk: Fix integer overflow in predictor_calc_error()
Fixes: signed integer overflow: -2147483300 - 12285 cannot be represented in type 'int'
Fixes: 59462/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5714298807386112
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 fbea91c750..6cd6a0af61 100644 --- a/libavcodec/bonk.c +++ b/libavcodec/bonk.c @@ -277,7 +277,7 @@ static int predictor_calc_error(int *k, int *state, int order, int error) for (i = order-2; i >= 0; i--, k_ptr--, state_ptr--) { unsigned k_value = *k_ptr, state_value = *state_ptr; - x -= shift_down(k_value * (unsigned)state_value, LATTICE_SHIFT); + x -= (unsigned) shift_down(k_value * (unsigned)state_value, LATTICE_SHIFT); state_ptr[1] = state_value + shift_down(k_value * x, LATTICE_SHIFT); } |