SB20260928394 - Unchecked Return Value in Linux kernel xfs scrub
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928394
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Unchecked Return Value (CVE-ID: CVE-2026-97542)
CWE-ID: CWE-252 - Unchecked Return Value
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause inconsistent in-core data.
The vulnerability exists due to an unchecked return value in xrep_agfl_init_header when walking allocation-group free-list extents during XFS repair. A local user can trigger an error from xagb_bitmap_walk to cause inconsistent in-core data.
Remediation
Install update from vendor's website.