CVE-2025-38177 Affecting kernel-uek-doc package, versions <0:6.12.0-103.40.4.1.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDOC-12588378
  • published10 Sept 2025
  • disclosed4 Jul 2025

Introduced: 4 Jul 2025

CVE-2025-38177  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-doc to version 0:6.12.0-103.40.4.1.el10uek or higher.
This issue was patched in ELSA-2025-20551.

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:10 relevant fixed versions and status.

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

sch_hfsc: make hfsc_qlen_notify() idempotent

hfsc_qlen_notify() is not idempotent either and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life:

  1. update_vf() decreases cl->cl_nactive, so we can check whether it is non-zero before calling it.

  2. eltree_remove() always removes RB node cl->el_node, but we can use RB_EMPTY_NODE() + RB_CLEAR_NODE() to make it safe.

CVSS Base Scores

version 3.1