Function Call with Incorrectly Specified Arguments in Linux kernel - CVE-2026-93231
Published: September 25, 2026
Vulnerability identifier: #VU152170
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93231
CWE-ID: CWE-628
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to prevent locks associated with a requested server IP address from being released.
The vulnerability exists due to incorrectly specified arguments in nlmsvc_match_ip() when releasing locks by server IP address through /proc/fs/nfsd/unlock_ip. A local user can invoke the unlock-by-IP operation to prevent locks associated with the requested server IP address from being released.
Affected software
Linux kernel
How to mitigate CVE-2026-93231
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3