CVE-2025-38460 Affecting kernel-default-base package, versions <5.14.21-150500.55.121.2.150500.6.57.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-SLES155-KERNELDEFAULTBASE-13046647
  • published25 Sept 2025
  • disclosed24 Sept 2025

Introduced: 24 Sep 2025

NewCVE-2025-38460  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-default-base to version 5.14.21-150500.55.121.2.150500.6.57.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-base package and not the kernel-default-base package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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

atm: clip: Fix potential null-ptr-deref in to_atmarpd().

atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang").

However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable.

Also, there is no RTNL dependency around atmarpd.

Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().

CVSS Base Scores

version 3.1