========================================================================== Ubuntu Security Notice USN-7725-3 September 02, 2025
linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-raspi 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-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-nvidia: Linux kernel for NVIDIA systems - linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe-6.8: Linux hardware enablement (HWE) 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: - Overlay file system; - Network traffic control; (CVE-2025-21887, CVE-2024-57996, CVE-2025-38350, CVE-2025-37752) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1020-gkeop 6.8.0-1020.22 linux-image-6.8.0-1033-gke 6.8.0-1033.37 linux-image-6.8.0-1036-nvidia 6.8.0-1036.39 linux-image-6.8.0-1036-nvidia-64k 6.8.0-1036.39 linux-image-6.8.0-1036-nvidia-lowlatency 6.8.0-1036.39.1 linux-image-6.8.0-1036-nvidia-lowlatency-64k 6.8.0-1036.39.1 linux-image-6.8.0-1036-raspi 6.8.0-1036.40 linux-image-gke 6.8.0-1033.37 linux-image-gke-6.8 6.8.0-1033.37 linux-image-gkeop 6.8.0-1020.22 linux-image-gkeop-6.8 6.8.0-1020.22 linux-image-nvidia 6.8.0-1036.39 linux-image-nvidia-6.8 6.8.0-1036.39 linux-image-nvidia-64k 6.8.0-1036.39 linux-image-nvidia-64k-6.8 6.8.0-1036.39 linux-image-nvidia-lowlatency 6.8.0-1036.39.1 linux-image-nvidia-lowlatency-6.8 6.8.0-1036.39.1 linux-image-nvidia-lowlatency-64k 6.8.0-1036.39.1 linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1036.39.1 linux-image-raspi 6.8.0-1036.40 linux-image-raspi-6.8 6.8.0-1036.40 Ubuntu 22.04 LTS linux-image-6.8.0-1036-nvidia 6.8.0-1036.39~22.04.1 linux-image-6.8.0-1036-nvidia-64k 6.8.0-1036.39~22.04.1 linux-image-6.8.0-1037-gcp 6.8.0-1037.39~22.04.1 linux-image-6.8.0-1037-gcp-64k 6.8.0-1037.39~22.04.1 linux-image-6.8.0-79-generic 6.8.0-79.79~22.04.1 linux-image-6.8.0-79-generic-64k 6.8.0-79.79~22.04.1 linux-image-gcp 6.8.0-1037.39~22.04.1 linux-image-gcp-6.8 6.8.0-1037.39~22.04.1 linux-image-gcp-64k 6.8.0-1037.39~22.04.1 linux-image-gcp-64k-6.8 6.8.0-1037.39~22.04.1 linux-image-generic-6.8 6.8.0-79.79~22.04.1 linux-image-generic-64k-6.8 6.8.0-79.79~22.04.1 linux-image-generic-64k-hwe-22.04 6.8.0-79.79~22.04.1 linux-image-generic-hwe-22.04 6.8.0-79.79~22.04.1 linux-image-nvidia-6.8 6.8.0-1036.39~22.04.1 linux-image-nvidia-64k-6.8 6.8.0-1036.39~22.04.1 linux-image-nvidia-64k-hwe-22.04 6.8.0-1036.39~22.04.1 linux-image-nvidia-hwe-22.04 6.8.0-1036.39~22.04.1 linux-image-oem-22.04 6.8.0-79.79~22.04.1 linux-image-oem-22.04a 6.8.0-79.79~22.04.1 linux-image-oem-22.04b 6.8.0-79.79~22.04.1 linux-image-oem-22.04c 6.8.0-79.79~22.04.1 linux-image-oem-22.04d 6.8.0-79.79~22.04.1 linux-image-virtual-6.8 6.8.0-79.79~22.04.1 linux-image-virtual-hwe-22.04 6.8.0-79.79~22.04.1 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-7725-3 https://ubuntu.com/security/notices/USN-7725-2 https://ubuntu.com/security/notices/USN-7725-1 CVE-2024-57996, CVE-2025-21887, CVE-2025-37752, CVE-2025-38350 Package Information: https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1033.37 https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1020.22 https://launchpad.net/ubuntu/+source/linux-nvidia/6.8.0-1036.39 https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1036.39.1 https://launchpad.net/ubuntu/+source/linux-raspi/6.8.0-1036.40 https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1037.39~22.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-79.79~22.04.1 https://launchpad.net/ubuntu/+source/linux-nvidia-6.8/6.8.0-1036.39~22.04.1
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