SB20260216102 - Improper locking in Linux kernel net netdevsim driver
Published: February 16, 2026
Security Bulletin ID
SB20260216102
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) Improper locking (CVE-ID: CVE-2026-23126)
CWE-ID: CWE-667 - Improper Locking
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 improper locking within the drivers/net/netdevsim/netdevsim.h. 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/3f560cfc7706029294132482fff5d1bc7884b70d
- https://git.kernel.org/stable/c/68462ecc40ea8f780fb3c74ebfddd05506bb731b
- https://git.kernel.org/stable/c/b97d5eedf4976cc94321243be83b39efe81a0e15
- https://git.kernel.org/stable/c/d77379ca82efcb2fe563359cc795027d680410db
- https://git.kernel.org/stable/c/f1f9cfd2f46a73b7de2982d01be822eac3a0efaa