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CVE-2021-32810

Description

crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a logical bug. Crates using `Stealer::steal`, `Stealer::steal_batch`, or `Stealer::steal_batch_and_pop` are affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4.


Affected Software


CPE Name Name Version
crossbeam_project:crossbeam crossbeam project crossbeam 0.7.4
crossbeam_project:crossbeam crossbeam project crossbeam 0.8.1
fedoraproject:fedora fedoraproject fedora 34

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