Bug 2482612 (CVE-2026-46150) - CVE-2026-46150 kernel: fanotify: fix false positive on permission events
Summary: CVE-2026-46150 kernel: fanotify: fix false positive on permission events
Keywords:
Status: NEW
Alias: CVE-2026-46150
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-28 11:05 UTC by OSIDB Bzimport
Modified: 2026-05-28 16:20 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-28 11:05:48 UTC 
In the Linux kernel, the following vulnerability has been resolved:

fanotify: fix false positive on permission events

fsnotify_get_mark_safe() may return false for a mark on an unrelated group,
which results in bypassing the permission check.

Fix by skipping over detached marks that are not in the current group.
Comment 1 Keith Grant 2026-05-28 16:17:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052822-CVE-2026-46150-c96d@gregkh/T
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