SB2025100966 - Input validation error in Linux kernel mac80211
Published: October 9, 2025
Security Bulletin ID
SB2025100966
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) Input validation error (CVE-ID: CVE-2025-39957)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ieee80211_register_hw() function in net/mac80211/main.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab
- https://git.kernel.org/stable/c/16c9244a62116fe148f6961753b68e7160799f97
- https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1
- https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1
- https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74