Ubuntu Security Notices
USN-7489-1

USN-7489-1: Linux kernel vulnerability

Publication date

6 May 2025

Overview

The system could be made to crash under certain conditions.

Releases

24.10 24.04 LTS

Packages

linux - Linux kernel
linux-aws - Linux kernel for Amazon Web Services (AWS) systems
linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
linux-gcp-6.11 - Linux kernel for Google Cloud Platform (GCP) systems
linux-hwe-6.11 - Linux hardware enablement (HWE) kernel
linux-lowlatency - Linux low latency kernel
linux-lowlatency-hwe-6.11 - Linux low latency kernel
linux-oracle - Linux kernel for Oracle Cloud systems
linux-raspi - Linux kernel for Raspberry Pi systems

Details

One 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:

Timer subsystem

One 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:

Timer subsystem

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
24.10 oracular	linux-image-6.11.0-1012-raspi – 6.11.0-1012.12
	linux-image-6.11.0-1013-aws – 6.11.0-1013.14
	linux-image-6.11.0-1013-lowlatency – 6.11.0-1013.14
	linux-image-6.11.0-1013-lowlatency-64k – 6.11.0-1013.14
	linux-image-6.11.0-1014-gcp – 6.11.0-1014.14
	linux-image-6.11.0-1014-gcp-64k – 6.11.0-1014.14
	linux-image-6.11.0-1015-oracle – 6.11.0-1015.16
	linux-image-6.11.0-1015-oracle-64k – 6.11.0-1015.16
	linux-image-6.11.0-25-generic – 6.11.0-25.25
	linux-image-6.11.0-25-generic-64k – 6.11.0-25.25
	linux-image-aws – 6.11.0-1013.14
	linux-image-gcp – 6.11.0-1014.14
	linux-image-gcp-64k – 6.11.0-1014.14
	linux-image-generic – 6.11.0-25.25
	linux-image-generic-64k – 6.11.0-25.25
	linux-image-lowlatency – 6.11.0-1013.14
	linux-image-lowlatency-64k – 6.11.0-1013.14
	linux-image-oracle – 6.11.0-1015.16
	linux-image-oracle-64k – 6.11.0-1015.16
	linux-image-raspi – 6.11.0-1012.12
	linux-image-virtual – 6.11.0-25.25
24.04 noble	linux-image-6.11.0-1013-lowlatency – 6.11.0-1013.14~24.04.1
	linux-image-6.11.0-1013-lowlatency-64k – 6.11.0-1013.14~24.04.1
	linux-image-6.11.0-1014-gcp – 6.11.0-1014.14~24.04.1
	linux-image-6.11.0-1014-gcp-64k – 6.11.0-1014.14~24.04.1
	linux-image-6.11.0-25-generic – 6.11.0-25.25~24.04.1
	linux-image-6.11.0-25-generic-64k – 6.11.0-25.25~24.04.1
	linux-image-gcp – 6.11.0-1014.14~24.04.1
	linux-image-gcp-64k – 6.11.0-1014.14~24.04.1
	linux-image-generic-64k-hwe-24.04 – 6.11.0-25.25~24.04.1
	linux-image-generic-hwe-24.04 – 6.11.0-25.25~24.04.1
	linux-image-lowlatency-64k-hwe-24.04 – 6.11.0-1013.14~24.04.1
	linux-image-lowlatency-hwe-24.04 – 6.11.0-1013.14~24.04.1
	linux-image-virtual-hwe-24.04 – 6.11.0-25.25~24.04.1

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References

CVE-2025-21813

CVE-2025-21813

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