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Fix oob in ThrottleKeyHasher::write

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This commit is contained in:
mdecimus 2024-12-18 14:17:16 +01:00
parent 38fa0291e2
commit 3275fb4313
1 changed files with 7 additions and 1 deletions
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8
crates/common/src/lib.rs
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@ -282,7 +282,13 @@ impl Hasher for ThrottleKeyHasher {
}
fn write(&mut self, bytes: &[u8]) {
self.hash = u64::from_ne_bytes((&bytes[..std::mem::size_of::<u64>()]).try_into().unwrap());
debug_assert!(
bytes.len() >= std::mem::size_of::<u64>(),
"ThrottleKeyHasher: input too short {bytes:?}"
);
self.hash = bytes
.get(0..std::mem::size_of::<u64>())
.map_or(0, |b| u64::from_ne_bytes(b.try_into().unwrap()));
}
}