CVE-2020-36451: Data races in rcu_cell
Affected versions of this crate unconditionally implement Send/Sync for RcuCell<T>.
This allows users to send T: !Send to other threads (while T enclosed within RcuCell<T>), and allows users to concurrently access T: !Sync by using the APIs of RcuCell<T> that provide access to &T.
This can result in memory corruption caused by data races.
References
- github.com/Xudong-Huang/rcu_cell
- github.com/Xudong-Huang/rcu_cell/issues/3
- github.com/Xudong-Huang/rcu_cell/pull/4
- github.com/Xudong-Huang/rcu_cell/pull/4/commits/1faf18eee11f14969b77ae0f76dcd9ebd437d0c2
- github.com/advisories/GHSA-686h-j8r8-wmfm
- nvd.nist.gov/vuln/detail/CVE-2020-36451
- rustsec.org/advisories/RUSTSEC-2020-0131.html
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