Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-98138
Published: September 28, 2026
Vulnerability identifier: #VU152303
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-98138
CWE-ID: CWE-754
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to prevent recovery of recorded NTFS volume errors.
The vulnerability exists due to an improper check for exceptional conditions in ntfs_sync_fs() in fs/ntfs/super.c when synchronizing an NTFS volume after errors have been recorded. A local user can trigger a filesystem synchronization that clears the volume dirty bit to prevent recovery of recorded NTFS volume errors.
The issue was reproduced on a volume whose $MFTMirr does not match $MFT.
Affected software
Linux kernel
How to mitigate CVE-2026-98138
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3