CVE-2023-53815

Ecosystem	Package	Version

Vulnerabilities

CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimer_delete() itimer_delete() has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK enabled. In that case and on RT kernels the existing task could live lock when preempting the task which does the timer delivery. Replace spin_unlock() with an invocation of timer_wait_running() to handle it the same way as the other retry loops in the posix timer code.

Published Dec 9, 2025

https://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53815-5695@gregkh/

CVSS ScoreMedium

5.6


rpm	kernel	5.14.0-160.el9
rpm	kernel	5.14.0-162.12.1.el9_1
rpm	kernel	5.14.0-162.18.1.el9_1
rpm	kernel	5.14.0-162.22.2.el9_1
rpm	kernel	5.14.0-162.23.1.el9_1
rpm	kernel	5.14.0-162.6.1.el9_1
rpm	kernel	5.14.0-283.el9
rpm	kernel	5.14.0-284.11.1.el9_2
rpm	kernel	5.14.0-284.18.1.el9_2
rpm	kernel	5.14.0-284.25.1.0.1.el9_2
rpm	kernel	5.14.0-284.25.1.el9_2
rpm	kernel	5.14.0-284.30.0.1.el9_2
rpm	kernel	5.14.0-284.30.1.el9_2
rpm	kernel	5.14.0-362.13.0.1.el9_3
rpm	kernel	5.14.0-362.13.1.el9_3
rpm	kernel	5.14.0-362.18.0.1.el9_3
rpm	kernel	5.14.0-362.18.0.2.el9_3
rpm	kernel	5.14.0-362.18.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.2.el9_3
rpm	kernel	5.14.0-362.24.1.0.3.el9_3
rpm	kernel	5.14.0-362.24.1.0.4.el9_3
rpm	kernel	5.14.0-362.24.1.el9_3
rpm	kernel	5.14.0-362.8.1.el9_3
rpm	kernel	5.14.0-427.13.1.0.1.el9_4
rpm	kernel	5.14.0-427.13.1.el9_4
rpm	kernel	5.14.0-427.16.1.0.1.el9_4
rpm	kernel	5.14.0-427.16.1.el9_4
rpm	kernel	5.14.0-427.18.1.0.1.el9_4
rpm	kernel	5.14.0-427.18.1.el9_4
rpm	kernel	5.14.0-427.20.1.0.1.el9_4
rpm	kernel	5.14.0-427.20.1.el9_4
rpm	kernel	5.14.0-427.22.1.0.1.el9_4
rpm	kernel	5.14.0-427.22.1.el9_4
rpm	kernel	5.14.0-427.24.1.0.1.el9_4
rpm	kernel	5.14.0-427.24.1.el9_4
rpm	kernel	5.14.0-427.26.1.0.1.el9_4
rpm	kernel	5.14.0-427.26.1.el9_4
rpm	kernel	5.14.0-427.28.1.0.1.el9_4
rpm	kernel	5.14.0-427.28.1.el9_4
rpm	kernel	5.14.0-427.31.1.0.1.el9_4
rpm	kernel	5.14.0-427.31.1.el9_4
rpm	kernel	5.14.0-427.33.1.0.1.el9_4
rpm	kernel	5.14.0-427.33.1.el9_4
rpm	kernel	5.14.0-427.35.1.0.1.el9_4
rpm	kernel	5.14.0-427.35.1.el9_4
rpm	kernel	5.14.0-427.37.1.0.1.el9_4
rpm	kernel	5.14.0-427.37.1.el9_4
rpm	kernel	5.14.0-427.40.1.0.1.el9_4
rpm	kernel	5.14.0-427.40.1.el9_4

Ecosystem	Package	Version

CVE-2023-53815 | Components Impacted | Sonatype Guide | Sonatype Guide

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CVE-2023-53815