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avoid usize overflow when sizing scratch buffers in yescrypt_body #907

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avoid usize overflow when sizing scratch buffers in yescrypt_body #907

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6 changes: 3 additions & 3 deletions yescrypt/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -130,9 +130,9 @@ fn yescrypt_body(
return Err(Error::Params);
}

let mut v = vec![0; 32 * (r as usize) * usize::try_from(n)?];
let mut b = vec![0; 32 * (r as usize) * (p as usize)];
let mut xy = vec![0; 64 * (r as usize)];
let mut v = vec![0; usize::try_from(32 * u64::from(r) * n)?];
let mut b = vec![0; usize::try_from(32 * u64::from(r) * u64::from(p))?];
let mut xy = vec![0; usize::try_from(64 * u64::from(r))?];

let mut passwd = passwd;
let mut sha256 = [0u8; 32];
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