CVE-2026-89613

kernel: ntfs: reject invalid empty mapping pairs

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 11, 2026

Updated · September 29, 2026

Description

A flaw was found in the Linux kernel's NTFS filesystem driver. This vulnerability occurs when the driver processes an attribute with empty mapping pairs that have inconsistent highest Virtual Cluster Number (VCN) and size. A local attacker could potentially craft a malicious NTFS filesystem that, when mounted, could lead to a denial of service by causing the system to become unresponsive or crash.

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-130 · Improper Handling of Length Parameter Inconsistency