Ubuntu has patched multiple high-severity vulnerabilities (CVE-2026-64520, CVSS 8.4; CVE-2026-53354, CVSS 8.8) in the Linux kernel for NVIDIA systems, which could allow an attacker to compromise the system. The flaws affect the ARM64 architecture and Arm Firmware Framework for ARMv8-A (FFA). The fixed kernel version for Ubuntu 26.04 LTS and 24.04 LTS is 7.0.0-1015.15, but note that this update includes an ABI change requiring recompilation of third-party kernel modules, and a system reboot is mandatory.
Ubuntu Security Notices USN-8622-1 USN-8622-1: Linux kernel (NVIDIA) vulnerabilities Publication date 29 July 2026 Overview Several security issues were fixed in the Linux kernel. Releases 26.04 LTS 24.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Related notices Packages linux-nvidia - Linux kernel for NVIDIA systems linux-nvidia-7.0 - Linux kernel for NVIDIA 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: ARM64 architecture; Arm Firmware Framework for ARMv8-A(FFA) 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: ARM64 architecture; Arm Firmware Framework for ARMv8-A(FFA) 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 26.04 LTS resolute linux-image-7.0.0-1015-nvidia – 7.0.0-1015.15 linux-image-7.0.0-1015-nvidia-64k – 7.0.0-1015.15 linux-image-nvidia – 7.0.0-1015.15 linux-image-nvidia-64k – 7.0.0-1015.15 linux-image-nvidia-64k-7.0 – 7.0.0-1015.15 linux-image-nvidia-7.0 – 7.0.0-1015.15 24.04 LTS noble linux-image-7.0.0-1015-nvidia – 7.0.0-1015.15~24.04.1 linux-image-7.0.0-1015-nvidia-64k – 7.0.0-1015.15~24.04.1 linux-image-nvidia-64k-7.0 – 7.0.0-1015.15~24.04.1 linux-image-nvidia-7.0 – 7.0.0-1015.15~24.04.1 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-2026-64520 CVE-2026-53354 CVE-2026-64520 CVE-2026-53354 Related notices USN-8623-1 USN-8618-1 USN-8596-1 USN-8623-1 USN-8618-1 USN-8596-1 Have additional questions? Talk to a member of the team ›