CVE-2026-47334 MEDIUM

CVE-2026-47334: Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling

Vendor Canonical
Product Ubuntu Linux
Weakness CWE-833
Published May 28, 2026
Last update May 28, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.

Key dates

02Disclosure timeline

May 28, 2026 CVE published
May 28, 2026 Record updated