RUSTSEC-2021-0010: containers: panic safety: double drop may happen within `util::{mutate, mutate2}`


Upon panic in a user-provided function f, fn mutate() & fn mutate2 drops twice a same object.

Affected versions of this crate did not guard against double drop while temporarily duplicating an object’s ownership with ptr::read().

Dropping a same object can result in memory corruption.

The flaw was corrected in version “0.9.11” by fixing the code to abort upon panic.

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Patched Versions