Code reviews of the Toolshed crate // Lib.rs

RUSTSEC-2020-0136 on 2020-11-15: CopyCell lacks bounds on its Send trait allowing for data races

CopyCell<T> is a Cell-like type that is implemented for any type T that is Copyable. It's Send trait has no bounds on the contained type.

As not all Copyable types are thread safe, for example non-mutable references implement the Copy trait, it is possible to send references to types with interior mutability such as Cell across threads and cause data races.

CVE-2020-36456

GHSA-2r6q-6c8c-g762

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