--- title: 'USN-7684-2: Linux kernel (FIPS) 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-7684-2 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-7684-2 --- # USN-7684-2: Linux kernel (FIPS) vulnerabilities Publication date 31 July 2025 Overview Several security issues were fixed in the Linux kernel. Releases [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) --- Open side navigation ## Packages * [linux-fips](https://ubuntu.com/security/cves?package=linux-fips) - Linux kernel with FIPS ## 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: * SCSI subsystem; * TTY drivers; * Ext4 file system; * Bluetooth subsystem; * USB sound devices ## 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 | | --- | --- | | 16.04 LTS xenial | [linux-image-4.4.0-1116-fips](https://launchpad.net/ubuntu/+source/linux-signed-fips) –  4.4.0-1116.123   FIPS Updates | | | | [linux-image-fips](https://launchpad.net/ubuntu/+source/linux-meta-fips) –  4.4.0.1116.117   FIPS Updates | | | --- ### 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-2024-53239](https://ubuntu.com/security/CVE-2024-53239) * [CVE-2024-50073](https://ubuntu.com/security/CVE-2024-50073) * [CVE-2024-49950](https://ubuntu.com/security/CVE-2024-49950) * [CVE-2024-49883](https://ubuntu.com/security/CVE-2024-49883) * [CVE-2023-52975](https://ubuntu.com/security/CVE-2023-52975) ## Related notices id="usn" *Search* * [USN-7911-1](https://ubuntu.com/security/notices/USN-7911-1) * [USN-7832-1](https://ubuntu.com/security/notices/USN-7832-1) * [USN-7819-1](https://ubuntu.com/security/notices/USN-7819-1) * [USN-7819-2](https://ubuntu.com/security/notices/USN-7819-2) * [USN-7712-1](https://ubuntu.com/security/notices/USN-7712-1) * [USN-7712-2](https://ubuntu.com/security/notices/USN-7712-2) * [USN-7711-1](https://ubuntu.com/security/notices/USN-7711-1) * [USN-7701-1](https://ubuntu.com/security/notices/USN-7701-1) * [USN-7701-2](https://ubuntu.com/security/notices/USN-7701-2) * [USN-7701-3](https://ubuntu.com/security/notices/USN-7701-3) --- Show 72 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)