CVE-2026-97553
kernel: xfs: lock the healthmon when inserting unmount event
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's XFS file system. When unmounting a file system, the health monitoring subsystem fails to acquire the necessary lock before inserting an unmount event into the event list. A local user with permissions to unmount file systems could trigger this race condition, causing list corruption and a Denial of Service (DoS) through a system crash.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-413 · Improper Resource Locking