Fixes: signed integer overflow: 1270564968 + 904828220 cannot be represented in type 'int'
Fixes: 15402/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5755426823471104
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
int i, j;
for (i = 0, j = k - 1; i < j; i++, j--) {
- int tmp1 = ((MUL64(par[k], cof[j]) + (1 << 19)) >> 20);
+ unsigned tmp1 = ((MUL64(par[k], cof[j]) + (1 << 19)) >> 20);
cof[j] += ((MUL64(par[k], cof[i]) + (1 << 19)) >> 20);
cof[i] += tmp1;
}
y = 1 << 19;
for (sb = -opt_order; sb < 0; sb++)
- y += MUL64(lpc_cof[sb], raw_samples[sb]);
+ y += (uint64_t)MUL64(lpc_cof[sb], raw_samples[sb]);
*raw_samples -= y >> 20;
}