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Ubuntu 24.04 LTS Linux Kernel Critical Security Issues Vuln 8373-1

ubuntu
Calendar Grey June 2, 2026
Dist Ubuntu Esm H88
Critical security issues in Ubuntu's Linux kernel require immediate attention to prevent exploitation and system compromise.
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-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-fips: Linux kernel with FIPS - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-nvidia: Linux kernel for NVIDIA systems - linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems - linux-nvidia-tegra: Linux kernel for NVIDIA Tegra systems - linux-oracle: Lin...

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Topics%20covered

Topics Covered

security advisory critical privilege escalation Ubuntu memory leak Linux kernel

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1026-nvidia-tegra 6.8.0-1026.26 linux-image-6.8.0-1026-nvidia-tegra-rt 6.8.0-1026.26 linux-image-6.8.0-1042-gkeop 6.8.0-1042.45 linux-image-6.8.0-1054-oracle 6.8.0-1054.55 linux-image-6.8.0-1054-oracle-64k 6.8.0-1054.55 linux-image-6.8.0-1055-gke 6.8.0-1055.61 linux-image-6.8.0-1055-gke-64k 6.8.0-1055.61 linux-image-6.8.0-1055-nvidia 6.8.0-1055.58 linux-image-6.8.0-1055-nvidia-64k 6.8.0-1055.58 linux-image-6.8.0-1055-nvidia-lowlatency 6.8.0-1055.58.1 linux-image-6.8.0-1055-nvidia-lowlatency-64k 6.8.0-1055.58.1 linux-image-6.8.0-1057-aws 6.8.0-1057.60 linux-image-6.8.0-1057-aws-64k 6.8.0-1057.60 linux-image-6.8.0-1057-aws-fips 6.8.0-1057.60+fips1 Available with Ubuntu Pro linux-image-6.8.0-1057-ibm 6.8.0-1057.58 linux-image-6.8.0-1057-raspi 6.8.0-1057.61 linux-image-6.8.0-1058-azure 6.8.0-1058.64 linux-image-6.8.0-1060-gcp 6.8.0-1060.63 linux-image-6.8.0-1060-gcp-64k 6.8.0-1060.63 linux-image-6.8.0-1060-gcp-fips 6.8.0-1060.63+fips1 Available with Ubuntu Pro linux-image-6.8.0-124-fips 6.8.0-124.124+fips1 Available with Ubuntu Pro linux-image-6.8.0-124-generic 6.8.0-124.124 linux-image-6.8.0-124-generic-64k 6.8.0-124.124 linux-image-6.8.0-2046-raspi-realtime 6.8.0-2046.47 Available with Ubuntu Pro linux-image-6.8.1-1052-realtime 6.8.1-1052.53 Available with Ubuntu Pro linux-image-aws-6.8 6.8.0-1057.60 linux-image-aws-64k-6.8 6.8.0-1057.60 linux-image-aws-64k-lts-24.04 6.8.0-1057.60 linux-image-aws-fips 6.8.0-1057.60+fips1 Available with Ubuntu Pro linux-image-aws-fips-6.8 6.8.0-1057.60+fips1 Available with Ubuntu Pro linux-image-aws-lts-24.04 6.8.0-1057.60 linux-image-azure-6.8 6.8.0-1058.64 linux-image-azure-lts-24.04 6.8.0-1058.64 linux-image-fips 6.8.0-124.124+fips1 Available with Ubuntu Pro linux-image-fips-6.8 6.8.0-124.124+fips1 Available with Ubuntu Pro linux-image-gcp-6.8 6.8.0-1060.63 linux-image-gcp-64k-6.8 6.8.0-1060.63 linux-image-gcp-64k-lts-24.04 6.8.0-1060.63 linux-image-gcp-fips 6.8.0-1060.63+fips1 Available with Ubuntu Pro linux-image-gcp-fips-6.8 6.8.0-1060.63+fips1 Available with Ubuntu Pro linux-image-gcp-lts-24.04 6.8.0-1060.63 linux-image-generic 6.8.0-124.124 linux-image-generic-6.8 6.8.0-124.124 linux-image-generic-64k 6.8.0-124.124 linux-image-generic-64k-6.8 6.8.0-124.124 linux-image-generic-lpae 6.8.0-124.124 linux-image-gke 6.8.0-1055.61 linux-image-gke-6.8 6.8.0-1055.61 linux-image-gke-64k 6.8.0-1055.61 linux-image-gke-64k-6.8 6.8.0-1055.61 linux-image-gkeop 6.8.0-1042.45 linux-image-gkeop-6.8 6.8.0-1042.45 linux-image-ibm 6.8.0-1057.58 linux-image-ibm-6.8 6.8.0-1057.58 linux-image-ibm-classic 6.8.0-1057.58 linux-image-ibm-lts-24.04 6.8.0-1057.58 linux-image-intel-iot-realtime 6.8.1-1052.53 Available with Ubuntu Pro linux-image-intel-iotg 6.8.0-124.124 linux-image-kvm 6.8.0-124.124 linux-image-nvidia 6.8.0-1055.58 linux-image-nvidia-6.8 6.8.0-1055.58 linux-image-nvidia-64k 6.8.0-1055.58 linux-image-nvidia-64k-6.8 6.8.0-1055.58 linux-image-nvidia-lowlatency 6.8.0-1055.58.1 linux-image-nvidia-lowlatency-6.8 6.8.0-1055.58.1 linux-image-nvidia-lowlatency-64k 6.8.0-1055.58.1 linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1055.58.1 linux-image-nvidia-tegra 6.8.0-1026.26 linux-image-nvidia-tegra-6.8 6.8.0-1026.26 linux-image-nvidia-tegra-rt 6.8.0-1026.26 linux-image-nvidia-tegra-rt-6.8 6.8.0-1026.26 linux-image-oracle-6.8 6.8.0-1054.55 linux-image-oracle-64k-6.8 6.8.0-1054.55 linux-image-oracle-64k-lts-24.04 6.8.0-1054.55 linux-image-oracle-lts-24.04 6.8.0-1054.55 linux-image-raspi 6.8.0-1057.61 linux-image-raspi-6.8 6.8.0-1057.61 linux-image-raspi-realtime 6.8.0-2046.47 Available with Ubuntu Pro linux-image-raspi-realtime-6.8 6.8.0-2046.47 Available with Ubuntu Pro linux-image-realtime 6.8.1-1052.53 Available with Ubuntu Pro linux-image-realtime-6.8.1 6.8.1-1052.53 Available with Ubuntu Pro linux-image-virtual 6.8.0-124.124 linux-image-virtual-6.8 6.8.0-124.124 Ubuntu 22.04 LTS linux-image-6.8.0-1054-oracle 6.8.0-1054.55~22.04.1 linux-image-6.8.0-1054-oracle-64k 6.8.0-1054.55~22.04.1 linux-image-6.8.0-1055-nvidia 6.8.0-1055.58~22.04.1 linux-image-6.8.0-1055-nvidia-64k 6.8.0-1055.58~22.04.1 linux-image-6.8.0-1057-aws 6.8.0-1057.60~22.04.1 linux-image-6.8.0-1057-aws-64k 6.8.0-1057.60~22.04.1 linux-image-6.8.0-1057-ibm 6.8.0-1057.58~22.04.1 linux-image-6.8.0-1060-gcp 6.8.0-1060.63~22.04.1 linux-image-6.8.0-1060-gcp-64k 6.8.0-1060.63~22.04.1 linux-image-6.8.0-124-generic 6.8.0-124.124~22.04.1 linux-image-6.8.0-124-generic-64k 6.8.0-124.124~22.04.1 linux-image-6.8.1-1052-realtime 6.8.1-1052.53~22.04.1 Available with Ubuntu Pro linux-image-aws 6.8.0-1057.60~22.04.1 linux-image-aws-6.8 6.8.0-1057.60~22.04.1 linux-image-aws-64k 6.8.0-1057.60~22.04.1 linux-image-aws-64k-6.8 6.8.0-1057.60~22.04.1 linux-image-gcp 6.8.0-1060.63~22.04.1 linux-image-gcp-6.8 6.8.0-1060.63~22.04.1 linux-image-gcp-64k 6.8.0-1060.63~22.04.1 linux-image-gcp-64k-6.8 6.8.0-1060.63~22.04.1 linux-image-generic-6.8 6.8.0-124.124~22.04.1 linux-image-generic-64k-6.8 6.8.0-124.124~22.04.1 linux-image-generic-64k-hwe-22.04 6.8.0-124.124~22.04.1 linux-image-generic-hwe-22.04 6.8.0-124.124~22.04.1 linux-image-ibm-6.8 6.8.0-1057.58~22.04.1 linux-image-nvidia-6.8 6.8.0-1055.58~22.04.1 linux-image-nvidia-64k-6.8 6.8.0-1055.58~22.04.1 linux-image-nvidia-64k-hwe-22.04 6.8.0-1055.58~22.04.1 linux-image-nvidia-hwe-22.04 6.8.0-1055.58~22.04.1 linux-image-oem-22.04 6.8.0-124.124~22.04.1 linux-image-oem-22.04a 6.8.0-124.124~22.04.1 linux-image-oem-22.04b 6.8.0-124.124~22.04.1 linux-image-oem-22.04c 6.8.0-124.124~22.04.1 linux-image-oem-22.04d 6.8.0-124.124~22.04.1 linux-image-oracle 6.8.0-1054.55~22.04.1 linux-image-oracle-6.8 6.8.0-1054.55~22.04.1 linux-image-oracle-64k 6.8.0-1054.55~22.04.1 linux-image-oracle-64k-6.8 6.8.0-1054.55~22.04.1 linux-image-realtime-6.8.1 6.8.1-1052.53~22.04.1 Available with Ubuntu Pro linux-image-realtime-hwe-22.04 6.8.1-1052.53~22.04.1 Available with Ubuntu Pro linux-image-virtual-6.8 6.8.0-124.124~22.04.1 linux-image-virtual-hwe-22.04 6.8.0-124.124~22.04.1 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-8373-1

CVE-2026-31676, CVE-2026-43284, CVE-2026-43494, CVE-2026-43500,

CVE-2026-43503, CVE-2026-45998, CVE-2026-46000, CVE-2026-46300,

CVE-2026-46333, CVE-2026-47326, CVE-2026-47327, CVE-2026-47328,

CVE-2026-47329, CVE-2026-47330, CVE-2026-47331, CVE-2026-47332,

CVE-2026-47333, CVE-2026-47334, CVE-2026-47335, CVE-2026-47336,

CVE-2026-47337

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8373-1

Topics%20covered

Topics Covered

security advisory critical privilege escalation Ubuntu memory leak Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/6.8.0-124.124 https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1057.60 https://launchpad.net/ubuntu/+source/linux-aws-fips/6.8.0-1057.60+fips1 https://launchpad.net/ubuntu/+source/linux-azure/6.8.0-1058.64 https://launchpad.net/ubuntu/+source/linux-fips/6.8.0-124.124+fips1 https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1060.63 https://launchpad.net/ubuntu/+source/linux-gcp-fips/6.8.0-1060.63+fips1 https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1055.61 https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1042.45 https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1057.58 https://launchpad.net/ubuntu/+source/linux-nvidia/6.8.0-1055.58 https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1055.58.1 https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/6.8.0-1026.26 https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1054.55 https://launchpad.net/ubuntu/+source/linux-raspi/6.8.0-1057.61 https://launchpad.net/ubuntu/+source/linux-raspi-realtime/6.8.0-2046.47 https://launchpad.net/ubuntu/+source/linux-realtime/6.8.1-1052.53 https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1057.60~22.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1060.63~22.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-124.124~22.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1057.58~22.04.1 https://launchpad.net/ubuntu/+source/linux-nvidia-6.8/6.8.0-1055.58~22.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1054.55~22.04.1 https://launchpad.net/ubuntu/+source/linux-realtime-6.8/6.8.1-1052.53~22.04.1

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