Ubuntu Security Notices
USN-8659-2

USN-8659-2: Linux kernel (HWE) vulnerability

Publication date

21 August 2026

Overview

A security issue was fixed in the Linux kernel.

Releases

24.04 LTS

Packages

linux-hwe-7.0 - Linux hardware enablement (HWE) kernel

Details

A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:

Open vSwitch

A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:

Open vSwitch

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release	Package Version
24.04 LTS noble	linux-image-7.0.0-30-generic – 7.0.0-30.30~24.04.1
	linux-image-7.0.0-30-generic-64k – 7.0.0-30.30~24.04.1
	linux-image-generic-64k-7.0 – 7.0.0-30.30~24.04.1
	linux-image-generic-64k-hwe-24.04 – 7.0.0-30.30~24.04.1
	linux-image-generic-7.0 – 7.0.0-30.30~24.04.1
	linux-image-generic-hwe-24.04 – 7.0.0-30.30~24.04.1
	linux-image-virtual-7.0 – 7.0.0-30.30~24.04.1
	linux-image-virtual-hwe-24.04 – 7.0.0-30.30~24.04.1