CVE-2026-47328

Medium

Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.

SeverityMedium

CVSS6.1

Exploit probability—

ProductCanonical Ubuntu Linux

PublishedMay 28, 2026

First seenMay 28, 2026

Weakness typeCWE-590CWE-590

How to fix

Patches

git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac

Affected products

Product	Affected versions	Fixed in
canonical ubuntu_linux	24.04, 25.10, 26.04	—

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