Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-90236
Published: September 18, 2026
Vulnerability identifier: #VU151247
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90236
CWE-ID: CWE-772
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to prevent an export from being unmounted.
The vulnerability exists due to improper resource management in the NFSD stateid reaping logic when reaping open and lock stateids. A remote user can trigger stateid teardown to prevent an export from being unmounted.
Affected software
Linux kernel
How to mitigate CVE-2026-90236
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3