Multiple security issues have been discovered in various Linux kernel versions for different platforms, including Amazon Web Services (AWS), Microsoft Azure Cloud systems, Google Container Engine (GKE) systems, and others. The issues were fixed through updates to the respective kernel versions, which require a system reboot after installation. Additionally, a separate vulnerability was addressed in FORT Validator, an RPKI validator and RTR server, due to input validation issues that could lead to denial of service or arbitrary code execution. Ubuntu security notices (USNs) have been issued for each of these vulnerabilities, providing detailed information on the affected platforms, fixed versions, and update instructions. [USN-7795-3] Linux kernel (AWS FIPS) vulnerabilities [USN-7811-1] Linux kernel (NVIDIA Tegra IGX) vulnerabilities [USN-7810-1] Linux kernel (Azure) vulnerabilities [USN-7793-5] Linux kernel (GKE) vulnerabilities [USN-7809-1] Linux kernel (Azure, N-Series) vulnerabilities [USN-7808-1] Linux kernel (Azure) vulnerabilities [USN-7792-3] Linux kernel (AWS) vulnerabilities [USN-7789-2] Linux kernel (Raspberry Pi) vulnerabilities [LSN-0115-1] Linux kernel vulnerability [USN-7813-1] FORT Validator vulnerabilities [USN-7795-3] Linux kernel (AWS FIPS) vulnerabilities ========================================================================== Ubuntu Security Notice USN-7795-3 October 08, 2025 linux-aws-fips vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS 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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets; - Network traffic control; - VMware vSockets driver; (CVE-2025-38618, CVE-2025-21796, CVE-2025-37785, CVE-2025-38477, CVE-2025-38617) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS linux-image-5.4.0-1151-aws-fips 5.4.0-1151.161+fips1 Available with Ubuntu Pro linux-image-aws-fips 5.4.0.1151.98 Available with Ubuntu Pro linux-image-aws-fips-5.4 5.4.0.1151.98 Available with Ubuntu Pro 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-7795-3 https://ubuntu.com/security/notices/USN-7795-2 https://ubuntu.com/security/notices/USN-7795-1 CVE-2025-21796, CVE-2025-37785, CVE-2025-38477, CVE-2025-38617, CVE-2025-38618 Package Information: https://launchpad.net/ubuntu/+source/linux-aws-fips/5.4.0-1151.161+fips1 [USN-7811-1] Linux kernel (NVIDIA Tegra IGX) vulnerabilities ========================================================================== Ubuntu Security Notice USN-7811-1 October 08, 2025 linux-nvidia-tegra-igx vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-nvidia-tegra-igx: Linux kernel for NVIDIA Tegra IGX 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: - Packet sockets; - Network traffic control; - VMware vSockets driver; (CVE-2025-38618, CVE-2025-38477, CVE-2025-38617) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1035-nvidia-tegra-igx 5.15.0-1035.35 linux-image-5.15.0-1035-nvidia-tegra-igx-rt 5.15.0-1035.35 linux-image-nvidia-tegra-igx 5.15.0.1035.37 linux-image-nvidia-tegra-igx-5.15 5.15.0.1035.37 linux-image-nvidia-tegra-igx-rt 5.15.0.1035.37 linux-image-nvidia-tegra-igx-rt-5.15 5.15.0.1035.37 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