SB20261022208 - Race condition in Linux kernel netfilter

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Main Vulnerability Database SB20261022208

SB20261022208 - Race condition in Linux kernel netfilter

Published: October 22, 2026

Security Bulletin ID SB20261022208
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2026-98624)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service by triggering a kernel fault.

The vulnerability exists due to a race condition in the Linux kernel nfnetlink_queue component when socket release notifications and queue configuration requests are processed concurrently. A local user can race a socket close() operation against an UNBIND request from another socket using the same portid to trigger concurrent queue destruction and cause a denial of service.


Remediation

Install update from vendor's website.

References