SB2025121041 - Memory leak in Linux kernel ethtool
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121041
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) Memory leak (CVE-ID: CVE-2023-53798)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ethtool_get_link_ksettings() function in net/ethtool/ioctl.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/6456d80045d6de47734b1a3879c91f72af186529
- https://git.kernel.org/stable/c/72808c4ab5fd01bf1214195005e15b434bf55cef
- https://git.kernel.org/stable/c/942a2a0184f7bb1c1ae4bbc556559c86c054b0d2
- https://git.kernel.org/stable/c/9ad685dbfe7e856bbf17a7177b64676d324d6ed7
- https://git.kernel.org/stable/c/da81af0ef8092ecacd87fac3229c29e2e0ce39fd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.112