SB2026090567 - Improper Check for Unusual or Exceptional Conditions in Linux kernel ocfs2

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Main Vulnerability Database SB2026090567

SB2026090567 - Improper Check for Unusual or Exceptional Conditions in Linux kernel ocfs2

Published: September 5, 2026

Security Bulletin ID SB2026090567
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 for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-80881)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause OCFS2 to process metadata that previously failed validation.

The vulnerability exists due to improper handling of validation failures in ocfs2_read_blocks() when reusing buffer heads returned by sb_getblk(). A local user can trigger reuse of buffer heads retaining BH_Uptodate status after failed validation to cause OCFS2 to process metadata that previously failed validation.


Remediation

Install update from vendor's website.

References