SB20260928387 - Race condition in Linux kernel xfs

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-97553)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to perform an unsynchronized insertion of an unmount event into the XFS health monitor event list.

The vulnerability exists due to a race condition in xfs_healthmon_unmount when inserting an unmount event into the health monitor event list. A local user can trigger an XFS unmount to perform an unsynchronized insertion of an unmount event into the XFS health monitor event list.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/7538ba528cfd6f176076186c1b1678fdca1c197b
• https://git.kernel.org/stable/c/d963ce1910bc4e23c60a4787af8a3aa3498a053e