NULL Pointer Dereference Affecting rv package, versions <0:5.14.0-362.8.1.el9_3


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.02% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS9-RV-14658635
  • published25 Dec 2025
  • disclosed24 Dec 2025

Introduced: 24 Dec 2025

CVE-2023-54085  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:9 rv to version 0:5.14.0-362.8.1.el9_3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

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

mptcp: fix NULL pointer dereference on fastopen early fallback

In case of early fallback to TCP, subflow_syn_recv_sock() deletes the subflow context before returning the newly allocated sock to the caller.

The fastopen path does not cope with the above unconditionally dereferencing the subflow context.

CVSS Base Scores

version 3.1