CVE-2026-97553
Received Received - Intake

XFS Health Monitor Unmount Event Locking Issue

Publication date: 2026-09-25

Last updated on: 2026-09-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: xfs: lock the healthmon when inserting unmount event LOLLM complains that xfs_healthmon_unmount does an unlocked insert of the unmount event into the health monitor's event list. Fix that.

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Meta Information

Published
2026-09-25
Last Modified
2026-09-25
Generated
2026-09-25
AI Q&A
2026-09-25
EPSS Evaluated
N/A
NVD
CVE-2026-97553
EUVD
EUVD-2026-86861

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel xfs *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a Linux kernel vulnerability where the XFS file system's health monitor does not properly lock when inserting an unmount event. This could lead to race conditions or improper handling of the event list during unmount operations.

Detection Guidance

This vulnerability is specific to the Linux kernel's XFS filesystem and involves a locking issue during unmount events. Detection requires checking kernel logs for XFS-related errors or warnings during filesystem unmount operations. Use commands like dmesg | grep -i xfs or journalctl -k | grep -i xfs to review kernel logs for XFS-related issues.

Impact Analysis

The impact may include potential data corruption or system instability during file system unmount operations if the health monitor's event list is improperly accessed concurrently.

Mitigation Strategies

Apply the latest kernel update provided by your Linux distribution to patch this vulnerability. Monitor kernel logs for XFS-related errors after applying updates. Ensure proper filesystem unmount procedures are followed to avoid triggering the issue.

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