CVE-2026-46150
kernel: fanotify: fix false positive on permission events
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's fanotify subsystem. This vulnerability allows for a bypass of permission checks because the fsnotify_get_mark_safe() function may incorrectly return false for marks on unrelated groups. This could enable an attacker to perform unauthorized actions by circumventing intended security restrictions.
Statement
This Moderate severity flaw in the Linux kernel's fanotify subsystem allows a local attacker to bypass security restrictions. An incorrect return value from fsnotify_get_mark_safe() can lead to unauthorized actions on Red Hat Enterprise Linux systems.
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 · 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-280 · Improper Handling of Insufficient Permissions or Privileges