Back Linuxsecurity

Ubuntu 18.04 and 20.04 LTS Linux Kernel Fixes and Updates

Linuxsecurity •LinuxSecurity Advisories • November 10, 2026

Critical WordPress Flaw Exploited in the Wild: Learn how to protect your site and check your core update window. ×

Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS - linux-bluefield: Linux kernel for NVIDIA BlueField platforms - linux-fips: Linux kernel with FIPS - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS - linux-ibm: Linux kernel for IBM cloud systems - linux-iot: Linux kernel for IoT platforms - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors - linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.4: Linux kernel for Google... Read the Full Advisory

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

- linux-bluefield: Linux kernel for NVIDIA BlueField platforms

- linux-fips: Linux kernel with FIPS

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS

- linux-ibm: Linux kernel for IBM cloud systems

- linux-iot: Linux kernel for IoT platforms

- linux-kvm: Linux kernel for cloud environments

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors

- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems

- linux-gcp-5.4: Linux kernel for Google...

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS linux-image-5.4.0-1071-iot 5.4.0-1071.74 Available with Ubuntu Pro linux-image-5.4.0-1085-xilinx-zynqmp 5.4.0-1085.89 Available with Ubuntu Pro linux-image-5.4.0-1113-ibm 5.4.0-1113.118 Available with Ubuntu Pro linux-image-5.4.0-1126-bluefield 5.4.0-1126.133 Available with Ubuntu Pro linux-image-5.4.0-1141-fips 5.4.0-1141.151 Available with Ubuntu Pro linux-image-5.4.0-1154-kvm 5.4.0-1154.163 Available with Ubuntu Pro linux-image-5.4.0-1165-oracle 5.4.0-1165.175 Available with Ubuntu Pro linux-image-5.4.0-1167-aws 5.4.0-1167.178 Available with Ubuntu Pro linux-image-5.4.0-1167-aws-fips 5.4.0-1167.178+fips1 Available with Ubuntu Pro linux-image-5.4.0-1170-gcp 5.4.0-1170.180 Available with Ubuntu Pro linux-image-5.4.0-1170-gcp-fips 5.4.0-1170.180+fips1 Available with Ubuntu Pro linux-image-5.4.0-1172-azure 5.4.0-1172.178 Available with Ubuntu Pro linux-image-5.4.0-1172-azure-fips 5.4.0-1172.178+fips1 Available with Ubuntu Pro linux-image-5.4.0-245-generic 5.4.0-245.265 Available with Ubuntu Pro linux-image-5.4.0-245-generic-lpae 5.4.0-245.265 Available with Ubuntu Pro linux-image-5.4.0-245-lowlatency 5.4.0-245.265 Available with Ubuntu Pro linux-image-aws-5.4 5.4.0.1167.165 Available with Ubuntu Pro linux-image-aws-fips 5.4.0.1167.114 Available with Ubuntu Pro linux-image-aws-fips-5.4 5.4.0.1167.114 Available with Ubuntu Pro linux-image-aws-lts-20.04 5.4.0.1167.165 Available with Ubuntu Pro linux-image-azure-5.4 5.4.0.1172.164 Available with Ubuntu Pro linux-image-azure-fips 5.4.0.1172.108 Available with Ubuntu Pro linux-image-azure-fips-5.4 5.4.0.1172.108 Available with Ubuntu Pro linux-image-azure-lts-20.04 5.4.0.1172.164 Available with Ubuntu Pro linux-image-bluefield 5.4.0.1126.122 Available with Ubuntu Pro linux-image-bluefield-5.4 5.4.0.1126.122 Available with Ubuntu Pro linux-image-fips 5.4.0.1141.138 Available with Ubuntu Pro linux-image-fips-5.4 5.4.0.1141.138 Available with Ubuntu Pro linux-image-gcp-5.4 5.4.0.1170.173 Available with Ubuntu Pro linux-image-gcp-fips 5.4.0.1170.112 Available with Ubuntu Pro linux-image-gcp-fips-5.4 5.4.0.1170.112 Available with Ubuntu Pro linux-image-gcp-lts-20.04 5.4.0.1170.173 Available with Ubuntu Pro linux-image-generic 5.4.0.245.237 Available with Ubuntu Pro linux-image-generic-5.4 5.4.0.245.237 Available with Ubuntu Pro linux-image-generic-lpae 5.4.0.245.237 Available with Ubuntu Pro linux-image-generic-lpae-5.4 5.4.0.245.237 Available with Ubuntu Pro linux-image-ibm-5.4 5.4.0.1113.142 Available with Ubuntu Pro linux-image-ibm-lts-20.04 5.4.0.1113.142 Available with Ubuntu Pro linux-image-kvm 5.4.0.1154.150 Available with Ubuntu Pro linux-image-kvm-5.4 5.4.0.1154.150 Available with Ubuntu Pro linux-image-lowlatency 5.4.0.245.237 Available with Ubuntu Pro linux-image-lowlatency-5.4 5.4.0.245.237 Available with Ubuntu Pro linux-image-oem 5.4.0.245.237 Available with Ubuntu Pro linux-image-oem-osp1 5.4.0.245.237 Available with Ubuntu Pro linux-image-oracle-5.4 5.4.0.1165.159 Available with Ubuntu Pro linux-image-oracle-lts-20.04 5.4.0.1165.159 Available with Ubuntu Pro linux-image-virtual 5.4.0.245.237 Available with Ubuntu Pro linux-image-virtual-5.4 5.4.0.245.237 Available with Ubuntu Pro linux-image-xilinx-zynqmp 5.4.0.1085.85 Available with Ubuntu Pro linux-image-xilinx-zynqmp-5.4 5.4.0.1085.85 Available with Ubuntu Pro Ubuntu 18.04 LTS linux-image-5.4.0-1113-ibm 5.4.0-1113.118~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-1165-oracle 5.4.0-1165.175~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-1170-gcp 5.4.0-1170.180~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-1172-azure 5.4.0-1172.178~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-245-generic 5.4.0-245.265~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-245-lowlatency 5.4.0-245.265~18.04.1 Available with Ubuntu Pro linux-image-azure 5.4.0.1172.178~18.04.1 Available with Ubuntu Pro linux-image-azure-5.4 5.4.0.1172.178~18.04.1 Available with Ubuntu Pro linux-image-gcp 5.4.0.1170.180~18.04.1 Available with Ubuntu Pro linux-image-gcp-5.4 5.4.0.1170.180~18.04.1 Available with Ubuntu Pro linux-image-generic-5.4 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-generic-hwe-18.04 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-ibm 5.4.0.1113.118~18.04.1 Available with Ubuntu Pro linux-image-ibm-5.4 5.4.0.1113.118~18.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.4 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-18.04 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-oem 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-oem-osp1 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-oracle 5.4.0.1165.175~18.04.1 Available with Ubuntu Pro linux-image-oracle-5.4 5.4.0.1165.175~18.04.1 Available with Ubuntu Pro linux-image-snapdragon-5.4 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-snapdragon-hwe-18.04 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-virtual-5.4 5.4.0.245.265~18.04.1 Available with Ubuntu Pro linux-image-virtual-hwe-18.04 5.4.0.245.265~18.04.1 Available with Ubuntu Pro After a standard system update you need to reboot your computer to make all the necessary changes. 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.

CVE-2025-39743, CVE-2025-39783, CVE-2025-39810, CVE-2025-39824,

CVE-2026-74350, CVE-2026-74394

Ubuntu Security Notice USN-9030-1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Multiple Ubuntu Linux Kernel Vulnerabilities Addressed in Recent Updates On November 10, 2026, Ubuntu released kernel updates addressing several security vulnerabilities across various versions, including 18.04, 20.04, and 22.04 LTS. These updates fix issues related to networking and filesystems, as well as specific flaws in the x86 architecture and OCFS2 filesystem. Notably, CVE-2026-63940 and CVE-2026-74350, both rated critical with CVSS scores of 9.3 and 9.8 respectively, were among the vulnerabilities patched. The updates affect multiple cloud environments, including AWS, Azure, and GCP systems. Users are advised to update their systems promptly to mitigate potential exploitation risks. The updates require a reboot to apply changes, and users must recompile any third-party kernel modules due to ABI changes. The vulnerabilities could allow attackers to compromise affected systems if left. 3 sources 61

Extracted Entities

Ubuntu 18.04 and 20.04 LTS Linux Kernel Fixes and Updates

The full story

Extracted Entities

Companies (2)

CVEs (6)

Platforms (6)