========================================================================== Ubuntu Security Notice USN-8274-1 May 19, 2026 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: 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-kvm: Linux kernel for cloud environments - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty 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; - BTRFS file system; - Sun RPC protocol; - XFRM subsystem; (CVE-2022-49033, CVE-2024-27388, CVE-2024-49938, CVE-2024-50008, CVE-2024-50142) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS linux-image-4.4.0-1155-kvm 4.4.0-1155.166 Available with Ubuntu Pro linux-image-4.4.0-1192-aws 4.4.0-1192.207 Available with Ubuntu Pro linux-image-4.4.0-280-generic 4.4.0-280.314 Available with Ubuntu Pro linux-image-4.4.0-280-lowlatency 4.4.0-280.314 Available with Ubuntu Pro linux-image-aws 4.4.0.1192.196 Available with Ubuntu Pro linux-image-generic 4.4.0.280.286 Available with Ubuntu Pro linux-image-generic-lts-xenial 4.4.0.280.286 Available with Ubuntu Pro linux-image-kvm 4.4.0.1155.152 Available with Ubuntu Pro linux-image-lowlatency 4.4.0.280.286 Available with Ubuntu Pro linux-image-lowlatency-lts-xenial 4.4.0.280.286 Available with Ubuntu Pro linux-image-virtual 4.4.0.280.286 Available with Ubuntu Pro linux-image-virtual-lts-xenial 4.4.0.280.286 Available with Ubuntu Pro Ubuntu 14.04 LTS linux-image-4.4.0-1154-aws 4.4.0-1154.160 Available with Ubuntu Pro linux-image-4.4.0-280-generic 4.4.0-280.314~14.04.1 Available with Ubuntu Pro linux-image-4.4.0-280-lowlatency 4.4.0-280.314~14.04.1 Available with Ubuntu Pro linux-image-aws 4.4.0.1154.151 Available with Ubuntu Pro linux-image-generic-lts-xenial 4.4.0.280.314~14.04.1 Available with Ubuntu Pro linux-image-lowlatency-lts-xenial 4.4.0.280.314~14.04.1 Available with Ubuntu Pro linux-image-virtual-lts-xenial 4.4.0.280.314~14.04.1 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. References: https://ubuntu.com/security/notices/USN-8274-1 CVE-2022-49033, CVE-2024-27388, CVE-2024-49938, CVE-2024-50008, CVE-2024-50142
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