SB20260123105 - Use-after-free in Linux kernel nfsd
Published: January 23, 2026
Security Bulletin ID
SB20260123105
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-22980)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fs/nfsd/state.h. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/06600719d0f7a723811c45e4d51f5b742f345309
- https://git.kernel.org/stable/c/2857bd59feb63fcf40fe4baf55401baea6b4feb4
- https://git.kernel.org/stable/c/34eb22836e0cdba093baac66599d68c4cd245a9d
- https://git.kernel.org/stable/c/53f07d095e7e680c5e4569a55a019f2c0348cdc6
- https://git.kernel.org/stable/c/ba4811c8b433bfa681729ca42cc62b6034f223b0
- https://git.kernel.org/stable/c/ca97360860eb02e3ae4ba42c19b439a0fcecbf06
- https://git.kernel.org/stable/c/e8bfa2401d4c51eca6e48e9b33c798828ca9df61