SB2025021345 - Improper locking in Linux kernel ethtool
Published: February 13, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025021345
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-2025-21701)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ethnl_ops_begin() function in net/ethtool/netlink.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/12e070eb6964b341b41677fd260af5a305316a1f
- https://git.kernel.org/stable/c/2f29127e94ae9fdc7497331003d6860e9551cdf3
- https://git.kernel.org/stable/c/4dc880245f9b529fa8f476b5553c799d2848b47b
- https://git.kernel.org/stable/c/b382ab9b885cbb665e0e70a727f101c981b4edf3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13