Ubuntu 24.04 LTS: Linux Kernel High Risk Issues USN-7725-1
ubuntu
August 28, 2025
Several security issues were fixed in the Linux kernel.
Summary
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-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-lowlatency: Linux low latency kernel - 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-oracle-6.8: Linux kernel for Oracle Cloud 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)
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1033-oracle 6.8.0-1033.34 linux-image-6.8.0-1033-oracle-64k 6.8.0-1033.34 linux-image-6.8.0-1036-aws 6.8.0-1036.38 linux-image-6.8.0-1036-aws-64k 6.8.0-1036.38 linux-image-6.8.0-1037-gcp 6.8.0-1037.39 linux-image-6.8.0-1037-gcp-64k 6.8.0-1037.39 linux-image-6.8.0-79-generic 6.8.0-79.79 linux-image-6.8.0-79-generic-64k 6.8.0-79.79 linux-image-6.8.0-79-lowlatency 6.8.0-79.79.1 linux-image-6.8.0-79-lowlatency-64k 6.8.0-79.79.1 linux-image-aws-6.8 6.8.0-1036.38 linux-image-aws-64k-6.8 6.8.0-1036.38 linux-image-aws-64k-lts-24.04 6.8.0-1036.38 linux-image-aws-lts-24.04 6.8.0-1036.38 linux-image-gcp-6.8 6.8.0-1037.39 linux-image-gcp-64k-6.8 6.8.0-1037.39 linux-image-gcp-64k-lts-24.04 6.8.0-1037.39 linux-image-gcp-lts-24.04 6.8.0-1037.39 linux-image-generic 6.8.0-79.79 linux-image-generic-6.8 6.8.0-79.79 linux-image-generic-64k 6.8.0-79.79 linux-image-generic-64k-6.8 6.8.0-79.79 linux-image-generic-lpae 6.8.0-79.79 linux-image-kvm 6.8.0-79.79 linux-image-lowlatency 6.8.0-79.79.1 linux-image-lowlatency-6.8 6.8.0-79.79.1 linux-image-lowlatency-64k 6.8.0-79.79.1 linux-image-lowlatency-64k-6.8 6.8.0-79.79.1 linux-image-oracle-6.8 6.8.0-1033.34 linux-image-oracle-64k-6.8 6.8.0-1033.34 linux-image-oracle-64k-lts-24.04 6.8.0-1033.34 linux-image-oracle-lts-24.04 6.8.0-1033.34 linux-image-virtual 6.8.0-79.79 linux-image-virtual-6.8 6.8.0-79.79 Ubuntu 22.04 LTS linux-image-6.8.0-1033-oracle 6.8.0-1033.34~22.04.1 linux-image-6.8.0-1033-oracle-64k 6.8.0-1033.34~22.04.1 linux-image-6.8.0-1036-aws 6.8.0-1036.38~22.04.1 linux-image-6.8.0-1036-aws-64k 6.8.0-1036.38~22.04.1 linux-image-6.8.0-79-lowlatency 6.8.0-79.79.1~22.04.1 linux-image-6.8.0-79-lowlatency-64k 6.8.0-79.79.1~22.04.1 linux-image-aws 6.8.0-1036.38~22.04.1 linux-image-aws-6.8 6.8.0-1036.38~22.04.1 linux-image-aws-64k 6.8.0-1036.38~22.04.1 linux-image-aws-64k-6.8 6.8.0-1036.38~22.04.1 linux-image-lowlatency-6.8 6.8.0-79.79.1~22.04.1 linux-image-lowlatency-64k-6.8 6.8.0-79.79.1~22.04.1 linux-image-lowlatency-64k-hwe-22.04 6.8.0-79.79.1~22.04.1 linux-image-lowlatency-hwe-22.04 6.8.0-79.79.1~22.04.1 linux-image-oracle 6.8.0-1033.34~22.04.1 linux-image-oracle-6.8 6.8.0-1033.34~22.04.1 linux-image-oracle-64k 6.8.0-1033.34~22.04.1 linux-image-oracle-64k-6.8 6.8.0-1033.34~22.04.1 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-7725-1
CVE-2024-57996, CVE-2025-21887, CVE-2025-37752, CVE-2025-38350
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Ubuntu Security Notice USN-7725-1
Topics Covered
Package Information
https://launchpad.net/ubuntu/+source/linux/6.8.0-79.79 https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1036.38 https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1037.39 https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-79.79.1 https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1033.34 https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1036.38~22.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-79.79.1~22.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1033.34~22.04.1
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