Ubuntu Security Notice USN-8244-1 addresses multiple unspecified vulnerabilities in the Linux kernel affecting network drivers, NVME drivers, and the Netfilter subsystem, which could allow an attacker to compromise the system. The update affects Ubuntu releases 25.10 and 24.04 LTS across multiple kernel flavors (e.g., linux-aws, linux-gcp, linux-generic) and requires a system reboot. Due to an unavoidable ABI change, administrators must also recompile and reinstall any third-party kernel modules after applying the update.
Ubuntu Security Notices USN-8244-1 USN-8244-1: Linux kernel vulnerabilities Publication date 7 May 2026 Overview Several security issues were fixed in the Linux kernel. Releases 25.10 24.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages linux - Linux kernel linux-aws - Linux kernel for Amazon Web Services (AWS) systems linux-aws-6.17 - Linux kernel for Amazon Web Services (AWS) systems linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems linux-gcp-6.17 - Linux kernel for Google Cloud Platform (GCP) systems linux-hwe-6.17 - Linux hardware enablement (HWE) kernel linux-oracle - Linux kernel for Oracle Cloud systems linux-realtime - Linux kernel for Real-time systems linux-realtime-6.17 - Linux kernel for Real-time systems Details Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: Network drivers; NVME drivers; Netfilter Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: Network drivers; NVME drivers; Netfilter 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 25.10 questing linux-image-6.17.0-1011-realtime – 6.17.0-1011.12 linux-image-6.17.0-1012-oracle – 6.17.0-1012.12 linux-image-6.17.0-1012-oracle-64k – 6.17.0-1012.12 linux-image-6.17.0-1013-aws – 6.17.0-1013.13 linux-image-6.17.0-1013-aws-64k – 6.17.0-1013.13 linux-image-6.17.0-1013-gcp – 6.17.0-1013.13 linux-image-6.17.0-1013-gcp-64k – 6.17.0-1013.13 linux-image-6.17.0-23-generic – 6.17.0-23.23 linux-image-6.17.0-23-generic-64k – 6.17.0-23.23 linux-image-aws – 6.17.0-1013.13 linux-image-aws-6.17 – 6.17.0-1013.13 linux-image-aws-64k – 6.17.0-1013.13 linux-image-aws-64k-6.17 – 6.17.0-1013.13 linux-image-gcp – 6.17.0-1013.13 linux-image-gcp-6.17 – 6.17.0-1013.13 linux-image-gcp-64k – 6.17.0-1013.13 linux-image-gcp-64k-6.17 – 6.17.0-1013.13 linux-image-generic – 6.17.0-23.23 linux-image-generic-6.17 – 6.17.0-23.23 linux-image-generic-64k – 6.17.0-23.23 linux-image-generic-64k-6.17 – 6.17.0-23.23 linux-image-oracle – 6.17.0-1012.12 linux-image-oracle-6.17 – 6.17.0-1012.12 linux-image-oracle-64k – 6.17.0-1012.12 linux-image-oracle-64k-6.17 – 6.17.0-1012.12 linux-image-realtime – 6.17.0-1011.12 linux-image-realtime-6.17 – 6.17.0-1011.12 linux-image-virtual – 6.17.0-23.23 linux-image-virtual-6.17 – 6.17.0-23.23 24.04 LTS noble linux-image-6.17.0-1011-realtime – 6.17.0-1011.12~24.04.1 Real-time Real-time kernel available with Ubuntu Pro. linux-image-6.17.0-1013-aws – 6.17.0-1013.13~24.04.1 linux-image-6.17.0-1013-aws-64k – 6.17.0-1013.13~24.04.1 linux-image-6.17.0-1013-gcp – 6.17.0-1013.13~24.04.1 linux-image-6.17.0-1013-gcp-64k – 6.17.0-1013.13~24.04.1 linux-image-6.17.0-23-generic – 6.17.0-23.23~24.04.1 linux-image-6.17.0-23-generic-64k – 6.17.0-23.23~24.04.1 linux-image-aws – 6.17.0-1013.13~24.04.1 linux-image-aws-6.17 – 6.17.0-1013.13~24.04.1 linux-image-aws-64k – 6.17.0-1013.13~24.04.1 linux-image-aws-64k-6.17 – 6.17.0-1013.13~24.04.1 linux-image-gcp – 6.17.0-1013.13~24.04.1 linux-image-gcp-6.17 – 6.17.0-1013.13~24.04.1 linux-image-gcp-64k – 6.17.0-1013.13~24.04.1 linux-image-gcp-64k-6.17 – 6.17.0-1013.13~24.04.1 linux-image-generic-6.17 – 6.17.0-23.23~24.04.1 linux-image-generic-64k-6.17 – 6.17.0-23.23~24.04.1 linux-image-generic-64k-hwe-24.04 – 6.17.0-23.23~24.04.1 linux-image-generic-hwe-24.04 – 6.17.0-23.23~24.04.1 linux-image-realtime-6.17 – 6.17.0-1011.12~24.04.1 Real-time Real-time kernel available with Ubuntu Pro. linux-image-realtime-hwe-24.04 – 6.17.0-1011.12~24.04.1 Real-time Real-time kernel available with Ubuntu Pro. linux-image-virtual-6.17 – 6.17.0-23.23~24.04.1 linux-image-virtual-hwe-24.04 – 6.17.0-23.23~24.04.1 Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2026-23273 CVE-2026-23231 CVE-2026-23112 CVE-2026-23273 CVE-2026-23231 CVE-2026-23112 Have additional questions? Talk to a member of the team ›