========================================================================= Ubuntu Security Notice USN-5219-1 January 11, 2022 linux, linux-aws, linux-aws-5.11, linux-azure, linux-azure-5.11, linux-gcp, linux-gcp-5.11, linux-hwe-5.11, linux-kvm, linux-oem-5.10, linux-oracle, linux-oracle-5.11, linux-raspi vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 21.04 - Ubuntu 20.04 LTS Summary: The system could be made to crash or run programs as an administrator. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-aws-5.11: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.11: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.11: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe-5.11: Linux hardware enablement (HWE) kernel - linux-oem-5.10: Linux kernel for OEM systems - linux-oracle-5.11: Linux kernel for Oracle Cloud systems Details: It was discovered that the eBPF implementation in the Linux kernel did not properly validate the memory size of certain ring buffer operation arguments. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: linux-image-5.13.0-1008-kvm 5.13.0-1008.8 linux-image-5.13.0-1009-aws 5.13.0-1009.10 linux-image-5.13.0-1010-azure 5.13.0-1010.11 linux-image-5.13.0-1010-gcp 5.13.0-1010.12 linux-image-5.13.0-1013-oracle 5.13.0-1013.16 linux-image-5.13.0-1013-raspi 5.13.0-1013.15 linux-image-5.13.0-1013-raspi-nolpae 5.13.0-1013.15 linux-image-5.13.0-25-generic 5.13.0-25.26 linux-image-5.13.0-25-generic-64k 5.13.0-25.26 linux-image-5.13.0-25-generic-lpae 5.13.0-25.26 linux-image-5.13.0-25-lowlatency 5.13.0-25.26 linux-image-aws 5.13.0.1009.11 linux-image-azure 5.13.0.1010.11 linux-image-gcp 5.13.0.1010.10 linux-image-generic 5.13.0.25.36 linux-image-generic-64k 5.13.0.25.36 linux-image-generic-lpae 5.13.0.25.36 linux-image-gke 5.13.0.1010.10 linux-image-kvm 5.13.0.1008.8 linux-image-lowlatency 5.13.0.25.36 linux-image-oem-20.04 5.13.0.25.36 linux-image-oracle 5.13.0.1013.14 linux-image-raspi 5.13.0.1013.19 linux-image-raspi-nolpae 5.13.0.1013.19 linux-image-virtual 5.13.0.25.36 Ubuntu 21.04: linux-image-5.11.0-1022-kvm 5.11.0-1022.24 linux-image-5.11.0-1025-aws 5.11.0-1025.27 linux-image-5.11.0-1025-azure 5.11.0-1025.27 linux-image-5.11.0-1025-oracle 5.11.0-1025.27 linux-image-5.11.0-1025-raspi 5.11.0-1025.27 linux-image-5.11.0-1025-raspi-nolpae 5.11.0-1025.27 linux-image-5.11.0-1026-gcp 5.11.0-1026.29 linux-image-5.11.0-46-generic 5.11.0-46.51 linux-image-5.11.0-46-generic-64k 5.11.0-46.51 linux-image-5.11.0-46-generic-lpae 5.11.0-46.51 linux-image-5.11.0-46-lowlatency 5.11.0-46.51 linux-image-aws 5.11.0.1025.25 linux-image-azure 5.11.0.1025.25 linux-image-gcp 5.11.0.1026.25 linux-image-generic 5.11.0.46.46 linux-image-generic-64k 5.11.0.46.46 linux-image-generic-lpae 5.11.0.46.46 linux-image-gke 5.11.0.1026.25 linux-image-kvm 5.11.0.1022.23 linux-image-lowlatency 5.11.0.46.46 linux-image-oem-20.04 5.11.0.46.46 linux-image-oracle 5.11.0.1025.25 linux-image-raspi 5.11.0.1025.23 linux-image-raspi-nolpae 5.11.0.1025.23 linux-image-virtual 5.11.0.46.46 Ubuntu 20.04 LTS: linux-image-5.10.0-1055-oem 5.10.0-1055.58 linux-image-5.11.0-1025-aws 5.11.0-1025.27~20.04.1 linux-image-5.11.0-1025-azure 5.11.0-1025.27~20.04.1 linux-image-5.11.0-1025-oracle 5.11.0-1025.27~20.04.1 linux-image-5.11.0-1026-gcp 5.11.0-1026.29~20.04.1 linux-image-5.11.0-46-generic 5.11.0-46.51~20.04.1 linux-image-5.11.0-46-generic-64k 5.11.0-46.51~20.04.1 linux-image-5.11.0-46-generic-lpae 5.11.0-46.51~20.04.1 linux-image-5.11.0-46-lowlatency 5.11.0-46.51~20.04.1 linux-image-aws 5.11.0.1025.27~20.04.24 linux-image-azure 5.11.0.1025.27~20.04.24 linux-image-gcp 5.11.0.1026.29~20.04.25 linux-image-generic-64k-hwe-20.04 5.11.0.46.51~20.04.23 linux-image-generic-hwe-20.04 5.11.0.46.51~20.04.23 linux-image-generic-lpae-hwe-20.04 5.11.0.46.51~20.04.23 linux-image-lowlatency-hwe-20.04 5.11.0.46.51~20.04.23 linux-image-oem-20.04 5.10.0.1055.56 linux-image-oem-20.04b 5.10.0.1055.56 linux-image-oracle 5.11.0.1025.27~20.04.18 linux-image-virtual-hwe-20.04 5.11.0.46.51~20.04.23 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-5219-1 https://launchpad.net/bugs/1956585 Package Information: https://launchpad.net/ubuntu/+source/linux/5.13.0-25.26 https://launchpad.net/ubuntu/+source/linux-aws/5.13.0-1009.10 https://launchpad.net/ubuntu/+source/linux-azure/5.13.0-1010.11 https://launchpad.net/ubuntu/+source/linux-gcp/5.13.0-1010.12 https://launchpad.net/ubuntu/+source/linux-kvm/5.13.0-1008.8 https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1013.16 https://launchpad.net/ubuntu/+source/linux-raspi/5.13.0-1013.15 https://launchpad.net/ubuntu/+source/linux/5.11.0-46.51 https://launchpad.net/ubuntu/+source/linux-aws/5.11.0-1025.27 https://launchpad.net/ubuntu/+source/linux-azure/5.11.0-1025.27 https://launchpad.net/ubuntu/+source/linux-gcp/5.11.0-1026.29 https://launchpad.net/ubuntu/+source/linux-kvm/5.11.0-1022.24 https://launchpad.net/ubuntu/+source/linux-oracle/5.11.0-1025.27 https://launchpad.net/ubuntu/+source/linux-raspi/5.11.0-1025.27 https://launchpad.net/ubuntu/+source/linux-aws-5.11/5.11.0-1025.27~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.11/5.11.0-1025.27~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.11/5.11.0-1026.29~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.11/5.11.0-46.51~20.04.1 https://launchpad.net/ubuntu/+source/linux-oem-5.10/5.10.0-1055.58 https://launchpad.net/ubuntu/+source/linux-oracle-5.11/5.11.0-1025.27~20.04.1