CVE-2026-47330

LOW

Use of uninitialized value in Ubuntu Linux AppArmor notification handling

Title source: cna

Description

Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.

References (1)

Core 1

Core References

Patch patch

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9b2c6eded493fa50e7c8cd3618d7ebe1358abaab

Scores

CVSS v3 3.3

EPSS 0.0009

EPSS Percentile 0.7%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-457

Status published

Products (6)

Canonical/Ubuntu Linux 6.17.0 - 6.17.0-35.35

Canonical/Ubuntu Linux 6.8.0 - 6.8.0-124.124

Canonical/Ubuntu Linux 7.0.0 - 7.0.0-22.22

canonical/ubuntu_linux 24.04

canonical/ubuntu_linux 25.10

canonical/ubuntu_linux 26.04

Published May 28, 2026

Tracked Since May 29, 2026