CVE-2026-72219
kernel: lockd: Plug nlm_file leak when nlm_do_fopen() fails
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · October 15, 2026
Description
A flaw was found in the Linux kernel's lockd component. A remote attacker can repeatedly trigger failures in the nlm_do_fopen() function by providing specially crafted file handles that the system rejects. This vulnerability causes a memory leak, where each failed operation consumes system memory without releasing it. Over time, this can lead to resource exhaustion and a Denial of Service (DoS) condition for the affected system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime