CVE-2025-40279 Affecting kernel-uek-doc package, versions <0:5.15.0-317.197.5.1.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKDOC-15306132
  • published17 Feb 2026
  • disclosed6 Dec 2025

Introduced: 6 Dec 2025

CVE-2025-40279  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-doc to version 0:5.15.0-317.197.5.1.el8uek or higher.
This issue was patched in ELSA-2026-50113.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-doc package and not the kernel-uek-doc package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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

net: sched: act_connmark: initialize struct tc_ife to fix kernel leak

In tcf_connmark_dump(), the variable 'opt' was partially initialized using a designatied initializer. While the padding bytes are reamined uninitialized. nla_put() copies the entire structure into a netlink message, these uninitialized bytes leaked to userspace.

Initialize the structure with memset before assigning its fields to ensure all members and padding are cleared prior to beign copied.

CVSS Base Scores

version 3.1