Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-89832
Published: September 17, 2026
Vulnerability identifier: #VU150461
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89832
CWE-ID: CWE-754
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to persist inconsistent node data to storage.
The vulnerability exists due to improper error handling in the f2fs node folio error path when processing a node block with a checksum mismatch or inconsistent footer information. A local user can trigger error handling for a corrupted node block to persist inconsistent node data to storage.
Affected software
Linux kernel
How to mitigate CVE-2026-89832
Install security update from vendor's repository.