Improper Restriction of Operations within the Bounds of a Memory Buffer and Race Condition in crossbeam-utils

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

使用共享资源的并发执行不恰当同步问题(竞争条件)

crossbeam 竞争条件问题漏洞

crossbeam是个人开发者的一个应用于并发编程的工具。 crossbeam 存在竞争条件问题漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。

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