SB2024060346 - Improper locking in Linux kernel mac80211
Published: June 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024060346
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 security vulnerability.
1) Improper locking (CVE-ID: CVE-2021-47225)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ieee80211_do_stop(), ieee80211_stop() and ieee80211_runtime_change_iftype() functions in net/mac80211/iface.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.