SB20260216103 - Improper locking in Linux kernel ipv6
Published: February 16, 2026
Security Bulletin ID
SB20260216103
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-2026-23124)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the ndisc_router_discovery() function in net/ipv6/ndisc.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/2619499169fb1c2ac4974b0f2d87767fb543582b
- https://git.kernel.org/stable/c/2a2b9d25f801afecf2f83cacce98afa8fd73e3c9
- https://git.kernel.org/stable/c/4630897eb1a039b5d7b737b8dc9521d9d4b568b5
- https://git.kernel.org/stable/c/9a063f96d87efc3a6cc667f8de096a3d38d74bb5
- https://git.kernel.org/stable/c/e3c1040252e598f7b4e33a42dc7c38519bc22428
- https://git.kernel.org/stable/c/fad8f4ff7928f4d52a062ffdcffa484989c79c47