--- title: 'USN-7880-1: Linux kernel (OEM) 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-7880-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-7880-1 --- # USN-7880-1: Linux kernel (OEM) vulnerabilities Publication date 21 November 2025 Overview Several security issues were fixed in the Linux kernel. Releases [24.04 LTS](https://ubuntu.com/security/notices?release=noble) --- Open side navigation ## Packages * [linux-oem-6.14](https://ubuntu.com/security/cves?package=linux-oem-6.14) - Linux kernel for OEM systems ## Details It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. ([CVE-2024-36331](https://ubuntu.com/security/CVE-2024-36331)) 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; * PowerPC architecture; * S390 architecture; * x86 architecture; * Network block device driver; * Character device driver; * Clock framework and drivers; * Data acquisition framework and drivers; * Hardware crypto device drivers; * Device frequency scaling framework; * DMA engine subsystem; * GPU drivers; * HID subsystem; * Hardware monitoring drivers; * I2C subsystem; * IIO subsystem; * IIO ADC... --- 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 | | --- | --- | | 24.04 LTS noble | [linux-image-6.14.0-1016-oem](https://launchpad.net/ubuntu/+source/linux-signed-oem-6.14) –  [6.14.0-1016.16](https://launchpad.net/ubuntu/+source/linux-signed-oem-6.14/6.14.0-1016.16) | | | | [linux-image-oem-6.14](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.14) –  [6.14.0-1016.16](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.14/6.14.0-1016.16) | | | --- ### 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 *Search* * [CVE-2025-39734](https://ubuntu.com/security/CVE-2025-39734) * [CVE-2025-39732](https://ubuntu.com/security/CVE-2025-39732) * [CVE-2025-39731](https://ubuntu.com/security/CVE-2025-39731) * [CVE-2025-39730](https://ubuntu.com/security/CVE-2025-39730) * [CVE-2025-39727](https://ubuntu.com/security/CVE-2025-39727) * [CVE-2025-39726](https://ubuntu.com/security/CVE-2025-39726) * [CVE-2025-39725](https://ubuntu.com/security/CVE-2025-39725) * [CVE-2025-38678](https://ubuntu.com/security/CVE-2025-38678) * [CVE-2025-38675](https://ubuntu.com/security/CVE-2025-38675) * [CVE-2025-38671](https://ubuntu.com/security/CVE-2025-38671) --- Show 187 more references ## Related notices id="usn" *Search* * [USN-8918-1](https://ubuntu.com/security/notices/USN-8918-1) * [USN-8917-1](https://ubuntu.com/security/notices/USN-8917-1) * [USN-8781-1](https://ubuntu.com/security/notices/USN-8781-1) * [USN-8668-1](https://ubuntu.com/security/notices/USN-8668-1) * [USN-8668-2](https://ubuntu.com/security/notices/USN-8668-2) * [USN-8620-1](https://ubuntu.com/security/notices/USN-8620-1) * [USN-8620-2](https://ubuntu.com/security/notices/USN-8620-2) * [USN-8620-3](https://ubuntu.com/security/notices/USN-8620-3) * [USN-8620-4](https://ubuntu.com/security/notices/USN-8620-4) * [USN-8610-1](https://ubuntu.com/security/notices/USN-8610-1) --- Show 120 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)