crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of `{i,u}64` was always the same as `Atomic{I,U}64`. However, the alignment of `{i,u}64` on a 32-bit target can be smaller than `Atomic{I,U}64`. This can cause unaligned memory accesses and data race. Crates using `fetch_*` methods with `AtomicCell<{i,u}64>` are affected by this issue. 32-bit targets without `Atomic{I,U}64` and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.
Metrics
Affected Vendors & Products
References
History
Tue, 22 Apr 2025 19:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|

Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-02-15T18:20:10.000Z
Updated: 2025-04-22T18:22:02.437Z
Reserved: 2022-01-19T00:00:00.000Z
Link: CVE-2022-23639

Updated: 2024-08-03T03:51:44.181Z

Status : Modified
Published: 2022-02-15T19:15:08.340
Modified: 2024-11-21T06:48:59.670
Link: CVE-2022-23639

No data.