========================================================================== Ubuntu Security Notice USN-7889-1 November 25, 2025
linux, linux-aws, linux-aws-6.8, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oracle vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems - linux-lowlatency-hwe-6.8: Linux low latency kernel - linux-nvidia-6.8: 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: - Media drivers; - Network drivers; - Netfilter; - TLS protocol; (CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1040-oracle 6.8.0-1040.41 linux-image-6.8.0-1040-oracle-64k 6.8.0-1040.41 linux-image-6.8.0-1041-ibm 6.8.0-1041.41 linux-image-6.8.0-1043-aws 6.8.0-1043.45 linux-image-6.8.0-1043-aws-64k 6.8.0-1043.45 linux-image-6.8.0-1043-nvidia 6.8.0-1043.46 linux-image-6.8.0-1043-nvidia-64k 6.8.0-1043.46 linux-image-6.8.0-1043-nvidia-lowlatency 6.8.0-1043.46.1 linux-image-6.8.0-1043-nvidia-lowlatency-64k 6.8.0-1043.46.1 linux-image-6.8.0-88-generic 6.8.0-88.89 linux-image-6.8.0-88-generic-64k 6.8.0-88.89 linux-image-6.8.0-88-lowlatency 6.8.0-88.89.1 linux-image-6.8.0-88-lowlatency-64k 6.8.0-88.89.1 linux-image-aws-6.8 6.8.0-1043.45 linux-image-aws-64k-6.8 6.8.0-1043.45 linux-image-aws-64k-lts-24.04 6.8.0-1043.45 linux-image-aws-lts-24.04 6.8.0-1043.45 linux-image-generic 6.8.0-88.89 linux-image-generic-6.8 6.8.0-88.89 linux-image-generic-64k 6.8.0-88.89 linux-image-generic-64k-6.8 6.8.0-88.89 linux-image-generic-lpae 6.8.0-88.89 linux-image-ibm 6.8.0-1041.41 linux-image-ibm-6.8 6.8.0-1041.41 linux-image-ibm-classic 6.8.0-1041.41 linux-image-ibm-lts-24.04 6.8.0-1041.41 linux-image-kvm 6.8.0-88.89 linux-image-lowlatency 6.8.0-88.89.1 linux-image-lowlatency-6.8 6.8.0-88.89.1 linux-image-lowlatency-64k 6.8.0-88.89.1 linux-image-lowlatency-64k-6.8 6.8.0-88.89.1 linux-image-nvidia 6.8.0-1043.46 linux-image-nvidia-6.8 6.8.0-1043.46 linux-image-nvidia-64k 6.8.0-1043.46 linux-image-nvidia-64k-6.8 6.8.0-1043.46 linux-image-nvidia-lowlatency 6.8.0-1043.46.1 linux-image-nvidia-lowlatency-6.8 6.8.0-1043.46.1 linux-image-nvidia-lowlatency-64k 6.8.0-1043.46.1 linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1043.46.1 linux-image-oracle-6.8 6.8.0-1040.41 linux-image-oracle-64k-6.8 6.8.0-1040.41 linux-image-oracle-64k-lts-24.04 6.8.0-1040.41 linux-image-oracle-lts-24.04 6.8.0-1040.41 linux-image-virtual 6.8.0-88.89 linux-image-virtual-6.8 6.8.0-88.89 Ubuntu 22.04 LTS linux-image-6.8.0-1043-aws 6.8.0-1043.45~22.04.1 linux-image-6.8.0-1043-aws-64k 6.8.0-1043.45~22.04.1 linux-image-6.8.0-1043-nvidia 6.8.0-1043.46~22.04.1 linux-image-6.8.0-1043-nvidia-64k 6.8.0-1043.46~22.04.1 linux-image-6.8.0-88-lowlatency 6.8.0-88.89.1~22.04.1 linux-image-6.8.0-88-lowlatency-64k 6.8.0-88.89.1~22.04.1 linux-image-aws 6.8.0-1043.45~22.04.1 linux-image-aws-6.8 6.8.0-1043.45~22.04.1 linux-image-aws-64k 6.8.0-1043.45~22.04.1 linux-image-aws-64k-6.8 6.8.0-1043.45~22.04.1 linux-image-lowlatency-6.8 6.8.0-88.89.1~22.04.1 linux-image-lowlatency-64k-6.8 6.8.0-88.89.1~22.04.1 linux-image-lowlatency-64k-hwe-22.04 6.8.0-88.89.1~22.04.1 linux-image-lowlatency-hwe-22.04 6.8.0-88.89.1~22.04.1 linux-image-nvidia-6.8 6.8.0-1043.46~22.04.1 linux-image-nvidia-64k-6.8 6.8.0-1043.46~22.04.1 linux-image-nvidia-64k-hwe-22.04 6.8.0-1043.46~22.04.1 linux-image-nvidia-hwe-22.04 6.8.0-1043.46~22.04.1 After a standard system update you need to reboot your computer to make all the necessary changes. 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. References: https://ubuntu.com/security/notices/USN-7889-1 CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678 Package Information: https://launchpad.net/ubuntu/+source/linux/6.8.0-88.89 https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1043.45 https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1041.41 https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-88.89.1 https://launchpad.net/ubuntu/+source/linux-nvidia/6.8.0-1043.46 https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1043.46.1 https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1040.41 https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1043.45~22.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-88.89.1~22.04.1 https://launchpad.net/ubuntu/+source/linux-nvidia-6.8/6.8.0-1043.46~22.04.1
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