CVE-2025-40168 Affecting kernel-debug-devel-matched package, versions <0:5.14.0-611.36.1.el9_7


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELDEBUGDEVELMATCHED-15367728
  • published3 Mar 2026
  • disclosed12 Nov 2025

Introduced: 12 Nov 2025

CVE-2025-40168  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-debug-devel-matched to version 0:5.14.0-611.36.1.el9_7 or higher.
This issue was patched in ELSA-2026-3488.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel-matched package and not the kernel-debug-devel-matched package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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

smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

smc_clc_prfx_match() is called from smc_listen_work() and not under RCU nor RTNL.

Using sk_dst_get(sk)->dev could trigger UAF.

Let's use __sk_dst_get() and dst_dev_rcu().

Note that the returned value of smc_clc_prfx_match() is not used in the caller.

CVSS Base Scores

version 3.1