Ubuntu Security Notices USN-7988-3 USN-7988-3: Linux kernel vulnerabilities Publication date 5 February 2026 Overview Several security issues were fixed in the Linux kernel. Releases 18.04 LTS 16.04 LTS 14.04 LTS Packages linux-azure - Linux kernel for Microsoft Azure Cloud systems linux-azure-4.15 - Linux kernel for Microsoft Azure Cloud systems linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems linux-gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) 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: Media drivers; NVME drivers; File systems infrastructure; Timer subsystem; Memory management; Packet sockets 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: Media drivers; NVME drivers; File systems infrastructure; Timer subsystem; Memory management; Packet sockets 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 18.04 LTS bionic linux-image-4.15.0-1181-gcp – 4.15.0-1181.198 linux-image-4.15.0-1196-azure – 4.15.0-1196.211 linux-image-azure-4.15 – 4.15.0.1196.164 linux-image-azure-lts-18.04 – 4.15.0.1196.164 linux-image-gcp-4.15 – 4.15.0.1181.194 linux-image-gcp-lts-18.04 – 4.15.0.1181.194 16.04 LTS xenial linux-image-4.15.0-1181-gcp – 4.15.0-1181.198~16.04.1 linux-image-gcp – 4.15.0.1181.198~16.04.1 linux-image-gke – 4.15.0.1181.198~16.04.1 14.04 LTS trusty linux-image-4.15.0-1196-azure – 4.15.0-1196.211~14.04.1 linux-image-azure – 4.15.0.1196.211~14.04.1 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-2025-39993 CVE-2024-56756 CVE-2024-56606 CVE-2024-50195 CVE-2024-49959 CVE-2024-27078 CVE-2022-48986 CVE-2025-39993 CVE-2024-56756 CVE-2024-56606 CVE-2024-50195 CVE-2024-49959 CVE-2024-27078 CVE-2022-48986 USN-7988-1 USN-7988-2 USN-7987-1 USN-7987-2 USN-7940-1 USN-7940-2 USN-7939-1 USN-7939-2 USN-7938-1 USN-7936-1 USN-7988-1 USN-7988-2 USN-7987-1 USN-7987-2 USN-7940-1 USN-7940-2 USN-7939-1 USN-7939-2 USN-7938-1 USN-7936-1 USN-7935-1 USN-7934-1 USN-7931-3 USN-7931-2 USN-7931-1 USN-7931-4 USN-7931-5 USN-7928-1 USN-7928-2 USN-7928-3 USN-7928-4 USN-7928-5 USN-7922-1 USN-7922-2 USN-7922-3 USN-7922-4 USN-7922-5 USN-7921-1 USN-7921-2 USN-7865-1 USN-7797-1 USN-7797-2 USN-7797-3 USN-7540-1 USN-7539-1 USN-7524-1 USN-7523-1 USN-7468-1 USN-7463-1 USN-7459-1 USN-7459-2 USN-7458-1 USN-7453-1 USN-7452-1 USN-7451-1 USN-7450-1 USN-7449-1 USN-7449-2 USN-7421-1 USN-7413-1 USN-7407-1 USN-7403-1 USN-7401-1 USN-7393-1 USN-7392-1 USN-7392-2 USN-7392-4 USN-7392-3 USN-7391-1 USN-7390-1 USN-7389-1 USN-7388-1 USN-7387-1 USN-7387-2 USN-7387-3 USN-7386-1 USN-7385-1 USN-7384-1 USN-7384-2 USN-7383-1 USN-7383-2 USN-7382-1 USN-7381-1 USN-7380-1 USN-7379-1 USN-7379-2 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 Have additional questions? Talk to a member of the team ›