CVE-2026-98138

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

ntfs: do not mark the volume clean in sync_fs when errors were recorded

ntfs_put_super() and the remount-read-only path both clear the dirty bit

only when NVolErrors(vol) is false. ntfs_sync_fs() clears it

unconditionally, so any sync() on a volume that recorded an error marks

that volume clean. A volume without this set is then seen as not needing

recovery and it does not run one, so whatever went wrong is never repaired.

This change skips resetting the dirty bit when there are volume errors.

Reproduced on a volume whose $MFTMirr does not match $MFT, which sets the

error flag while leaving the mount read-write: after a write and a sync,

the on-disk volume flags read 0x0000 with this driver and 0x0001 with the

guard in place.

/// Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// Affected products

/// References