SB2026060408 - Always-Incorrect Control Flow Implementation in Linux kernel ath ath12k driver
Published: June 4, 2026
Security Bulletin ID
SB2026060408
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-46271)
CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of WoW offloads in the ath12k Wi-Fi driver when processing multi-link connections. A local user can trigger WoW offloads on both primary and secondary links to cause a denial of service.
The issue affects WCN7850 firmware in multi-link connection scenarios.
Remediation
Install update from vendor's website.