U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38637 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net_sched: skbprio: Remove overly strict queue assertions In the current implementation, skbprio enqueue/dequeue contains an assertion that fails under certain conditions when SKBPRIO is used as a child qdisc under TBF with specific parameters. The failure occurs because TBF sometimes peeks at packets in the child qdisc without actually dequeuing them when tokens are unavailable. This peek operation creates a discrepancy between the parent and child qdisc queue length counters. When TBF later receives a high-priority packet, SKBPRIO's queue length may show a different value than what's reflected in its internal priority queue tracking, triggering the assertion. The fix removes this overly strict assertions in SKBPRIO, they are not necessary at all.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/034b293bf17c124fec0f0e663f81203b00aa7a50 kernel.org Patch 
https://git.kernel.org/stable/c/1284733bab736e598341f1d3f3b94e2a322864a8 kernel.org Patch 
https://git.kernel.org/stable/c/1dcc144c322a8d526b791135604c0663f1af9d85 kernel.org Patch 
https://git.kernel.org/stable/c/2286770b07cb5268c03d11274b8efd43dff0d380 kernel.org Patch 
https://git.kernel.org/stable/c/2f35b7673a3aa3d09b3eb05811669622ebaa98ca kernel.org Patch 
https://git.kernel.org/stable/c/32ee79682315e6d3c99947b3f38b078a09a66919 kernel.org Patch 
https://git.kernel.org/stable/c/7abc8318ce0712182bf0783dcfdd9a6a8331160e kernel.org Patch 
https://git.kernel.org/stable/c/864ca690ff135078d374bd565b9872f161c614bc kernel.org Patch 
https://git.kernel.org/stable/c/ce8fe975fd99b49c29c42e50f2441ba53112b2e8 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html CVE Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html CVE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-617 Reachable Assertion cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38637
NVD Published Date:
04/18/2025
NVD Last Modified:
11/06/2025
Source:
kernel.org