CVE-2023-53815 Affecting kernel-ipaclones-internal package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL8-KERNELIPACLONESINTERNAL-14332308
  • published10 Dec 2025
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

NewCVE-2023-53815  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 kernel-ipaclones-internal.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-ipaclones-internal package and not the kernel-ipaclones-internal package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1