========================================================================== Ubuntu Security Notice USN-8015-4 February 11, 2026
linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency-hwe-6.8 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-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems - linux-ibm-6.8: Linux kernel for IBM cloud systems - linux-lowlatency-hwe-6.8: Linux low latency kernel 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: - Cryptographic API; - SMB network file system; - io_uring subsystem; (CVE-2025-38561, CVE-2025-39698, CVE-2025-40019) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1043-ibm 6.8.0-1043.43 linux-image-6.8.0-1045-aws 6.8.0-1045.47 linux-image-6.8.0-1045-aws-64k 6.8.0-1045.47 linux-image-6.8.0-1046-gcp 6.8.0-1046.49 linux-image-6.8.0-1046-gcp-64k 6.8.0-1046.49 linux-image-aws-6.8 6.8.0-1045.47 linux-image-aws-64k-6.8 6.8.0-1045.47 linux-image-aws-64k-lts-24.04 6.8.0-1045.47 linux-image-aws-lts-24.04 6.8.0-1045.47 linux-image-gcp-6.8 6.8.0-1046.49 linux-image-gcp-64k-6.8 6.8.0-1046.49 linux-image-gcp-64k-lts-24.04 6.8.0-1046.49 linux-image-gcp-lts-24.04 6.8.0-1046.49 linux-image-ibm 6.8.0-1043.43 linux-image-ibm-6.8 6.8.0-1043.43 linux-image-ibm-classic 6.8.0-1043.43 linux-image-ibm-lts-24.04 6.8.0-1043.43 Ubuntu 22.04 LTS linux-image-6.8.0-1043-ibm 6.8.0-1043.43~22.04.1 linux-image-6.8.0-1045-aws 6.8.0-1045.47~22.04.1 linux-image-6.8.0-1045-aws-64k 6.8.0-1045.47~22.04.1 linux-image-6.8.0-1046-gcp 6.8.0-1046.49~22.04.1 linux-image-6.8.0-1046-gcp-64k 6.8.0-1046.49~22.04.1 linux-image-6.8.0-94-lowlatency 6.8.0-94.96.1~22.04.1 linux-image-6.8.0-94-lowlatency-64k 6.8.0-94.96.1~22.04.1 linux-image-aws 6.8.0-1045.47~22.04.1 linux-image-aws-6.8 6.8.0-1045.47~22.04.1 linux-image-aws-64k 6.8.0-1045.47~22.04.1 linux-image-aws-64k-6.8 6.8.0-1045.47~22.04.1 linux-image-gcp 6.8.0-1046.49~22.04.1 linux-image-gcp-6.8 6.8.0-1046.49~22.04.1 linux-image-gcp-64k 6.8.0-1046.49~22.04.1 linux-image-gcp-64k-6.8 6.8.0-1046.49~22.04.1 linux-image-ibm-6.8 6.8.0-1043.43~22.04.1 linux-image-lowlatency-6.8 6.8.0-94.96.1~22.04.1 linux-image-lowlatency-64k-6.8 6.8.0-94.96.1~22.04.1 linux-image-lowlatency-64k-hwe-22.04 6.8.0-94.96.1~22.04.1 linux-image-lowlatency-hwe-22.04 6.8.0-94.96.1~22.04.1 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-8015-4 https://ubuntu.com/security/notices/USN-8015-3 https://ubuntu.com/security/notices/USN-8015-2 https://ubuntu.com/security/notices/USN-8015-1 CVE-2025-38561, CVE-2025-39698, CVE-2025-40019 Package Information: https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1045.47 https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1046.49 https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1043.43 https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1045.47~22.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1046.49~22.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1043.43~22.04.1https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-94.96.1~22.04.1
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