Memory leak in Linux kernel - CVE-2026-89710
Published: September 12, 2026
Vulnerability identifier: #VU149093
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89710
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a memory leak.
The vulnerability exists due to improper resource cleanup in pnfs_layout_process() in the NFSv4.1 pNFS implementation when processing a new layout stateid returned while a valid stateid is still held. A remote attacker can operate an NFSv4.1 server that returns a new layout stateid to cause a memory leak.
Affected software
Linux kernel
How to mitigate CVE-2026-89710
Install security update from vendor's repository.