CVE-2025-38668 Affecting kernel-64kb-devel package, versions <6.4.0-150700.53.16.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-SLES157-KERNEL64KBDEVEL-13007471
  • published23 Sept 2025
  • disclosed22 Sept 2025

Introduced: 22 Sep 2025

NewCVE-2025-38668  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-64kb-devel to version 6.4.0-150700.53.16.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64kb-devel package and not the kernel-64kb-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

regulator: core: fix NULL dereference on unbind due to stale coupling data

Failing to reset coupling_desc.n_coupled after freeing coupled_rdevs can lead to NULL pointer dereference when regulators are accessed post-unbind.

This can happen during runtime PM or other regulator operations that rely on coupling metadata.

For example, on ridesx4, unbinding the 'reg-dummy' platform device triggers a panic in regulator_lock_recursive() due to stale coupling state.

Ensure n_coupled is set to 0 to prevent access to invalid pointers.

CVSS Base Scores

version 3.1