CVE-2025-40018 Affecting kernel-uek-debug-devel package, versions <0:6.12.0-106.55.4.1.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUGDEVEL-14397749
  • published12 Dec 2025
  • disclosed24 Oct 2025

Introduced: 24 Oct 2025

CVE-2025-40018  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug-devel to version 0:6.12.0-106.55.4.1.el10uek or higher.
This issue was patched in ELSA-2025-28040.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-devel package and not the kernel-uek-debug-devel package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ipvs: Defer ip_vs_ftp unregister during netns cleanup

On the netns cleanup path, __ip_vs_ftp_exit() may unregister ip_vs_ftp before connections with valid cp->app pointers are flushed, leading to a use-after-free.

Fix this by introducing a global exiting_module flag, set to true in ip_vs_ftp_exit() before unregistering the pernet subsystem. In __ip_vs_ftp_exit(), skip ip_vs_ftp unregister if called during netns cleanup (when exiting_module is false) and defer it to __ip_vs_cleanup_batch(), which unregisters all apps after all connections are flushed. If called during module exit, unregister ip_vs_ftp immediately.

CVSS Base Scores

version 3.1