--- title: 'USN-8164-1: Linux kernel (Intel IoTG Real-time) vulnerabilities | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-8164-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-8164-1 --- # USN-8164-1: Linux kernel (Intel IoTG Real-time) vulnerabilities Publication date 9 April 2026 Overview Several security issues were fixed in the Linux kernel. Releases [22.04 LTS](https://ubuntu.com/security/notices?release=jammy) --- Open side navigation ## Packages * [linux-intel-iot-realtime](https://ubuntu.com/security/cves?package=linux-intel-iot-realtime) - Linux kernel for Intel IoT Real-time platforms ## Details Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information (kernel memory), local privilege escalation, or possibly escape a container. (LP: #2143853, [CVE-2026-23268](https://ubuntu.com/security/CVE-2026-23268), [CVE-2026-23269](https://ubuntu.com/security/CVE-2026-23269), [CVE-2026-23403](https://ubuntu.com/security/CVE-2026-23403), [CVE-2026-23404](https://ubuntu.com/security/CVE-2026-23404), [CVE-2026-23405](https://ubuntu.com/security/CVE-2026-23405), [CVE-2026-23406](https://ubuntu.com/security/CVE-2026-23406), [CVE-2026-23407](https://ubuntu.com/security/CVE-2026-23407), [CVE-2026-23408](https://ubuntu.com/security/CVE-2026-23408), [CVE-2026-23409](https://ubuntu.com/security/CVE-2026-23409), [CVE-2026-23410](https://ubuntu.com/security/CVE-2026-23410), --- Show more ## 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.](https://ubuntu.com/security/cves/about#security) 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-5.15.0-1096-intel-iot-realtime](https://launchpad.net/ubuntu/+source/linux-signed-intel-iot-realtime) –  5.15.0-1096.98   Real-time | | | | [linux-image-intel-iot-realtime](https://launchpad.net/ubuntu/+source/linux-meta-intel-iot-realtime) –  5.15.0.1096.100   Real-time | | | | [linux-image-intel-iot-realtime-5.15](https://launchpad.net/ubuntu/+source/linux-meta-intel-iot-realtime) –  5.15.0.1096.100   Real-time | | | --- ### 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](https://ubuntu.com/pro) ## References * * [CVE-2026-23411](https://ubuntu.com/security/CVE-2026-23411) * [CVE-2026-23410](https://ubuntu.com/security/CVE-2026-23410) * [CVE-2026-23409](https://ubuntu.com/security/CVE-2026-23409) * [CVE-2026-23408](https://ubuntu.com/security/CVE-2026-23408) * [CVE-2026-23407](https://ubuntu.com/security/CVE-2026-23407) * [CVE-2026-23406](https://ubuntu.com/security/CVE-2026-23406) * [CVE-2026-23405](https://ubuntu.com/security/CVE-2026-23405) * [CVE-2026-23404](https://ubuntu.com/security/CVE-2026-23404) * [CVE-2026-23403](https://ubuntu.com/security/CVE-2026-23403) --- Show 6 more references ## Related notices id="usn" *Search* * [USN-8267-1](https://ubuntu.com/security/notices/USN-8267-1) * [USN-8266-1](https://ubuntu.com/security/notices/USN-8266-1) * [USN-8261-1](https://ubuntu.com/security/notices/USN-8261-1) * [USN-8243-1](https://ubuntu.com/security/notices/USN-8243-1) * [USN-8224-1](https://ubuntu.com/security/notices/USN-8224-1) * [USN-8203-1](https://ubuntu.com/security/notices/USN-8203-1) * [USN-8201-1](https://ubuntu.com/security/notices/USN-8201-1) * [USN-8200-1](https://ubuntu.com/security/notices/USN-8200-1) * [USN-8200-2](https://ubuntu.com/security/notices/USN-8200-2) * [USN-8200-3](https://ubuntu.com/security/notices/USN-8200-3) --- Show 51 more references --- Have additional questions? [Talk to a member of the team ›](https://wiki.ubuntu.com/SecurityTeam/FAQ?_ga=2.242131138.1744859116.1742138161-1500419473.1726851136&_gl=1*161muja*_gcl_au*MzUyMTIzNjI1LjE3MzYyNDQ4NTE.#Contact)