Expired Pointer Dereference Affecting kernel-modules-extra-matched package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELMODULESEXTRAMATCHED-18623325
  • published12 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-68357  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 kernel-modules-extra-matched.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-extra-matched package and not the kernel-modules-extra-matched package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

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

watchdog: pretimeout: Fix UAF in watchdog_unregister_governor()

When a watchdog governor is unregistered, it updates existing watchdog devices that were using this governor by falling back to default_gov.

If the governor being unregistered is currently set as default_gov, the default_gov is never cleared. This leads to 2 use-after-free issues:

  1. New watchdog devices registered after this point will inherit the dangling default_gov.
  2. Existing watchdog devices using the unregistered governor will have their wdd->gov reassigned to the dangling default_gov.

Fix the UAF by clearing default_gov if it matches the governor being unregistered.

CVSS Base Scores

version 3.1