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Merge pull request #704 from JOE1994/0030-cache

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Cache<K>: Send/Sync impls needs trait bounds on `K`
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Sergey "Shnatsel" Davidoff
2021-01-30 19:05:45 +01:00
committed by GitHub
parent a51d26eb1e 913a847d34
commit 65da9c554e
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crates/cache/RUSTSEC-0000-0000.md vendored Normal file
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```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "cache"
date = "2020-11-24"
url = "https://github.com/krl/cache/issues/1"
categories = ["memory-corruption", "thread-safety"]
[versions]
patched = []
```
# Cache<K>: Send/Sync impls needs trait bounds on `K`
Affected versions of this crate unconditionally implement Send/Sync for `Cache<K>`.
This allows users to insert `K` that is not Send or not Sync.
This allows users to create data races by using non-Send types like `Arc<Cell<T>>` or `Rc<T>` as `K` in `Cache<K>`. It is also possible to create data races by using types like `Cell<T>` or `RefCell<T>` (types that are `Send` but not `Sync`).
Such data races can lead to memory corruption.