SB2026072042 - Infinite loop in Linux kernel wireless

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Main Vulnerability Database SB2026072042

SB2026072042 - Infinite loop in Linux kernel wireless

Published: July 20, 2026

Security Bulletin ID SB2026072042
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Infinite loop (CVE-ID: CVE-2026-64174)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper loop state management in cfg80211_merge_profile() when processing a specially crafted malicious beacon containing split Multi-BSSID non-transmitted BSS profile elements. A remote attacker can send a specially crafted beacon to cause a denial of service.

The issue can cause the kernel to spend excessive time in the affected function for each beacon received.


Remediation

Install update from vendor's website.

References