CVE-2025-38352 posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

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Multiple CVEs Addressing POSIX CPU Timer Vulnerabilities Published Two vulnerabilities related to POSIX CPU timers have been published, affecting systems that utilize these timers. CVE-2022-2585, published on January 8, 2024, involves a use-after-free issue when executing from a non-leader thread. CVE-2025-38352, published on July 22, 2025, addresses a race condition between timer handling functions. 2 sources 39