SB20260325156 - Missing release of memory after effective lifetime in Linux kernel nfsd
Published: March 25, 2026
Security Bulletin ID
SB20260325156
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) Missing release of memory after effective lifetime (CVE-ID: CVE-2026-23297)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper memory management in the nfsd component when handling netlink requests. A local user can trigger a memory leak to cause a denial of service.
Memory leak occurs in nfsd_nl_threads_set_doit() due to failure to release a reference to struct cred obtained via get_current_cred().
Remediation
Install update from vendor's website.