CVE-2026-90117
kernel: ntfs: validate usa_ofs before preserving the update sequence number
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel's NTFS filesystem driver. When reusing a free Master File Table (MFT) record, the driver fails to properly validate an offset value from the on-disk record. A local attacker could exploit this by creating a specially crafted file, leading to a use-after-free error and potentially causing a system crash (Denial of Service).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read