CVE-2026-47334CWE-833

Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling

Medium · published May 28, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
0.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00078 · 0.1th percentile
Weakness
CWE-833 · Deadlock
Published
2026-05-28T18:28Z
EPSS history
Timeline
  • 28 MAY 18:28Z
    Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling
    cvelistv5