CVE-2026-80538
Received Received - Intake

XFS Filesystem Error Propagation in Linux Kernel

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: xfs: propagate errors from xfs_rtginode_load xfs_rtginode_ensure() treats every xfs_rtginode_load() error other than -ENOENT as success. This can leave the realtime group inode unset after an I/O, allocation, or corruption error. Growfs then continues as though the inode had been loaded. Only -ENOENT means that the inode needs to be created. Return all other errors to the growfs caller.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-08-26
AI Q&A
2026-08-26
EPSS Evaluated
N/A
NVD
CVE-2026-80538
EUVD
EUVD-2026-66453

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is in the Linux kernel's XFS file system. It involves an error in handling realtime group inodes during file system growth. The function xfs_rtginode_ensure incorrectly treats certain errors from xfs_rtginode_load as success, even when the inode was not properly loaded due to I/O, allocation, or corruption issues. This can leave the realtime group inode unset, causing growfs to proceed as if the inode was loaded.

Detection Guidance

This vulnerability is specific to the XFS filesystem in the Linux kernel and may not have direct network detection methods. Check kernel logs for XFS-related errors or failures during filesystem operations, especially during growfs operations. Commands like dmesg | grep -i xfs or journalctl -k | grep -i xfs may help identify issues.

Impact Analysis

This vulnerability could lead to file system corruption or data loss if the realtime group inode is not properly loaded during a growfs operation. It may cause the file system to become unstable or inaccessible, potentially disrupting services relying on the XFS file system.

Mitigation Strategies

Apply the latest Linux kernel patches or updates that address this issue. Monitor XFS filesystem operations for errors and avoid running growfs operations until the system is patched. Ensure backups are current in case filesystem corruption occurs.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-80538. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart