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advisory-db/crates/v9/RUSTSEC-2020-0127.md

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[advisory]
id = "RUSTSEC-2020-0127"
package = "v9"
date = "2020-12-18"
url = "https://github.com/purpleposeidon/v9/issues/1"
categories = ["memory-corruption", "thread-safety"]

[versions]
patched = []

SyncRef's clone() and debug() allow data races

Affected versions of this crate unconditionally implement Sync for SyncRef<T>. This definition allows data races if &T is accessible through &SyncRef.

SyncRef<T> derives Clone and Debug, and the default implementations of those traits access &T by invoking T::clone() & T::fmt(). It is possible to create data races & undefined behavior by concurrently invoking SyncRef<T>::clone() or SyncRef<T>::fmt() from multiple threads with T: !Sync.