CVE-2025-38177 Affecting cluster-md-kmp-default package, versions <5.3.18-150300.59.215.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (13th percentile)

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  • Snyk IDSNYK-SLES153-CLUSTERMDKMPDEFAULT-12016324
  • published19 Aug 2025
  • disclosed18 Aug 2025

Introduced: 18 Aug 2025

NewCVE-2025-38177  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 cluster-md-kmp-default to version 5.3.18-150300.59.215.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cluster-md-kmp-default package and not the cluster-md-kmp-default package as distributed by SLES. See How to fix? for SLES:15.3 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