CVE-2025-40239 Affecting kernel-64k-debug-modules-partner package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL9-KERNEL64KDEBUGMODULESPARTNER-14205568
  • published6 Dec 2025
  • disclosed4 Dec 2025

Introduced: 4 Dec 2025

NewCVE-2025-40239  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 kernel-64k-debug-modules-partner.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules-partner package and not the kernel-64k-debug-modules-partner package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

net: phy: micrel: always set shared->phydev for LAN8814

Currently, during the LAN8814 PTP probe shared->phydev is only set if PTP clock gets actually set, otherwise the function will return before setting it.

This is an issue as shared->phydev is unconditionally being used when IRQ is being handled, especially in lan8814_gpio_process_cap and since it was not set it will cause a NULL pointer exception and crash the kernel.

So, simply always set shared->phydev to avoid the NULL pointer exception.

CVSS Base Scores

version 3.1