Ubuntu Security Notices USN-8291-3 USN-8291-3: Linux kernel (Low Latency) vulnerabilities Publication date 25 May 2026 Overview Several security issues were fixed in the Linux kernel. Releases 22.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Related notices Packages linux-lowlatency - Linux low latency kernel 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: SMB network file system; Netfilter; io_uring 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: SMB network file system; Netfilter; io_uring 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 22.04 LTS jammy linux-image-5.15.0-178-lowlatency – 5.15.0-178.188 linux-image-5.15.0-178-lowlatency-64k – 5.15.0-178.188 linux-image-lowlatency – 5.15.0.178.150 linux-image-lowlatency-5.15 – 5.15.0.178.150 linux-image-lowlatency-64k – 5.15.0.178.150 linux-image-lowlatency-64k-5.15 – 5.15.0.178.150 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-2026-23351 CVE-2026-23274 CVE-2024-50060 CVE-2024-35862 CVE-2026-23351 CVE-2026-23274 CVE-2024-50060 CVE-2024-35862 Related notices USN-8296-1 USN-8291-1 USN-8291-2 USN-8289-1 USN-8279-1 USN-8279-2 USN-8278-1 USN-8277-1 USN-8277-2 USN-7524-1 USN-8296-1 USN-8291-1 USN-8291-2 USN-8289-1 USN-8279-1 USN-8279-2 USN-8278-1 USN-8277-1 USN-8277-2 USN-7524-1 USN-7523-1 USN-7468-1 USN-7451-1 USN-7403-1 USN-7386-1 USN-7385-1 USN-7384-1 USN-7384-2 USN-7383-1 USN-7383-2 USN-7310-1 USN-7277-1 USN-7276-1 USN-6918-1 USN-6893-1 USN-6893-2 USN-6893-3 Show 17 more references Show less references Have additional questions? Talk to a member of the team ›