Unchecked Return Value in Linux kernel - CVE-2026-97542
Published: September 28, 2026
Vulnerability identifier: #VU152665
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-97542
CWE-ID: CWE-252
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-97542
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3