CVE-2026-97439

kernel: fs/ntfs3: preserve non-DOS attribute bits in system.dos_attrib

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 24, 2026

Updated · September 30, 2026

Description

A flaw was found in the Linux kernel's NTFS3 file system. A local user can cause a Denial of Service (DoS) by manipulating extended file attributes on a mounted NTFS volume. Improper attribute handling clears internal compression flags without synchronizing file mapping operations, triggering a kernel null pointer dereference and system crash during subsequent write operations.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference