CVE-2026-90132
kernel: ntfs: reject unprivileged writes to reserved $LX* xattrs
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. This vulnerability allows an unprivileged local user to bypass intended access controls by modifying reserved extended attributes (xattrs), such as $LXUID, $LXGID, $LXMOD, and $LXDEV, through the setxattr function. This unauthorized modification of system-critical attributes could lead to unexpected system behavior or other security implications.
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-266 · Incorrect Privilege Assignment