mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/alac: Fix integer overflow in LPC coefficient adaption
Fixes: signed integer overflow: 267693597 * 10 cannot be represented in type 'int' Fixes: 19237/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5755407700328448 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
parent
c0bd5fa43d
commit
6a865cec5e
|
@ -228,7 +228,7 @@ static void lpc_prediction(int32_t *error_buffer, uint32_t *buffer_out,
|
||||||
sign = sign_only(val) * error_sign;
|
sign = sign_only(val) * error_sign;
|
||||||
lpc_coefs[j] -= sign;
|
lpc_coefs[j] -= sign;
|
||||||
val *= (unsigned)sign;
|
val *= (unsigned)sign;
|
||||||
error_val -= (val >> lpc_quant) * (j + 1);
|
error_val -= (val >> lpc_quant) * (j + 1U);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue