WhiteSource Vulnerability Database
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Date: October 31, 2020
In atomic-option through 0.1.2, AtomicOption<T> unconditionally implements Sync. This allows programmers to move non-Sync types across thread boundaries (e.g. Rc<T>, Arc<Cell<T>>), which can lead to data races and undefined behavior. It is also possible to send non-Send types like std::sync::MutexGuard to other threads, which can lead to undefined behavior.