CVE-2023-54218

A data race was found in the Linux kernel's networking subsystem. In sock_recv_cmsgs(), the sk->sk_stamp field is read without using READ_ONCE(), while it can be concurrently written by another thread. This load-tearing issue was detected by KCSAN (Kernel Concurrency Sanitizer) during packet socket receive operations.

This is a theoretical data race detected by KCSAN that could result in reading a partially updated timestamp value. The practical impact is limited to potentially incorrect timestamp data being returned in control messages. There is no demonstrated crash or exploitable security vulnerability from this race condition.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.