SB20260827108 - Improper Check or Handling of Exceptional Conditions in Linux kernel xfs

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Main Vulnerability Database SB20260827108

SB20260827108 - Improper Check or Handling of Exceptional Conditions in Linux kernel xfs

Published: August 27, 2026

Security Bulletin ID SB20260827108
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-80529)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause filesystem corruption.

The vulnerability exists due to improper handling of error conditions in xlog_recover_dquot_commit_pass2() when recovering quota log items. A local user can trigger quota recovery involving a corrupted dquot to cause filesystem corruption.

The issue occurs because a recovered dquot verification failure is discarded, allowing log recovery to proceed as if the dquot were valid and enabling a corrupt quota buffer to be written back to disk.


Remediation

Install update from vendor's website.

References