posix cpu timers

About this tag
Discussions on WindowsForum.com about posix cpu timers focus on a recent Linux kernel vulnerability, CVE-2025-38352, which involves a race condition in POSIX CPU timer handling. The flaw, fixed upstream in July 2025, could cause incorrect timer deletion, hangs, or crashes in pathological workloads. It is rated as a high-impact local vulnerability affecting availability and stability. The tag covers this specific security issue and its implications for Linux systems, including the need for prompt patching. While the tag is Linux-specific, it may be relevant to Windows users running Linux subsystems or virtualized environments.

  1. Linux Kernel POSIX CPU Timer Race CVE-2025-38352 Fixed Upstream

    A subtle race in the Linux kernel’s POSIX CPU timer handling — tracked as CVE-2025-38352 — was fixed upstream in July 2025 after maintainers accepted a small, surgical change that prevents an exiting task from being reaped while posix CPU timer expiry handling is in flight. The flaw could lead...
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    • Forum: Security Alerts