Ubuntu Security Notices USN-8274-1 USN-8274-1: Linux kernel vulnerabilities Publication date 19 May 2026 Overview Several security issues were fixed in the Linux kernel. Releases 16.04 LTS 14.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Related notices Packages 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 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 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 16.04 LTS xenial linux-image-4.4.0-1155-kvm – 4.4.0-1155.166 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-4.4.0-1192-aws – 4.4.0-1192.207 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-4.4.0-280-generic – 4.4.0-280.314 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-4.4.0-280-lowlatency – 4.4.0-280.314 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-aws – 4.4.0.1192.196 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-generic – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-generic-lts-xenial – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-kvm – 4.4.0.1155.152 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-lowlatency – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-lowlatency-lts-xenial – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-virtual – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . linux-image-virtual-lts-xenial – 4.4.0.280.286 Ubuntu Pro Fix available with Ubuntu Pro . 14.04 LTS trusty linux-image-4.4.0-1154-aws – 4.4.0-1154.160 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-4.4.0-280-generic – 4.4.0-280.314~14.04.1 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-4.4.0-280-lowlatency – 4.4.0-280.314~14.04.1 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-aws – 4.4.0.1154.151 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-generic-lts-xenial – 4.4.0.280.314~14.04.1 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-lowlatency-lts-xenial – 4.4.0.280.314~14.04.1 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. linux-image-virtual-lts-xenial – 4.4.0.280.314~14.04.1 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. 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-2024-50142 CVE-2024-50008 CVE-2024-49938 CVE-2024-27388 CVE-2022-49033 CVE-2024-50142 CVE-2024-50008 CVE-2024-49938 CVE-2024-27388 CVE-2022-49033 Related notices Search id="usn" Close Search USN-8267-1 USN-8266-1 USN-7540-1 USN-7539-1 USN-7524-1 USN-7523-1 USN-7468-1 USN-7458-1 USN-7453-1 USN-7452-1 USN-8267-1 USN-8266-1 USN-7540-1 USN-7539-1 USN-7524-1 USN-7523-1 USN-7468-1 USN-7458-1 USN-7453-1 USN-7452-1 USN-7451-1 USN-7450-1 USN-7449-1 USN-7449-2 USN-7413-1 USN-7403-1 USN-7401-1 USN-7393-1 USN-7390-1 USN-7389-1 USN-7388-1 USN-7386-1 USN-7385-1 USN-7384-1 USN-7384-2 USN-7331-1 USN-7311-1 USN-7310-1 USN-7308-1 USN-7305-1 USN-7304-1 USN-7303-1 USN-7303-2 USN-7303-3 USN-7301-1 USN-7295-1 USN-7294-1 USN-7294-2 USN-7294-3 USN-7294-4 USN-7293-1 USN-7291-1 USN-7289-1 USN-7289-2 USN-7289-3 USN-7289-4 USN-7288-1 USN-7288-2 USN-7277-1 USN-7276-1 USN-7194-1 USN-7186-1 USN-7186-2 USN-7166-1 USN-7166-2 USN-7166-3 USN-7166-4 USN-6919-1 USN-6896-1 USN-6896-2 USN-6896-3 USN-6896-4 USN-6896-5 USN-6892-1 USN-6878-1 USN-6871-1 USN-6828-1 USN-6821-1 USN-6821-2 USN-6821-3 USN-6821-4 USN-6820-1 USN-6820-2 USN-6817-1 USN-6817-2 USN-6817-3 USN-6816-1 Show 67 more references Show less references Have additional questions? 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