Bug 2536493 (CVE-2026-90132) - CVE-2026-90132 kernel: ntfs: reject unprivileged writes to reserved $LX* xattrs
Summary: CVE-2026-90132 kernel: ntfs: reject unprivileged writes to reserved $LX* xattrs
Keywords:
Status: NEW
Alias: CVE-2026-90132
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-17 18:13 UTC by OSIDB Bzimport
Modified: 2026-10-13 12:48 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-17 18:13:08 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ntfs: reject unprivileged writes to reserved $LX* xattrs

Reject setxattr of the reserved $LXUID, $LXGID, $LXMOD and $LXDEV names
from userspace unless the caller has CAP_SYS_ADMIN.
Comment 1 Keith Grant 2026-09-23 14:56:18 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90132.mbox
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