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Ubuntu 24.04 LTS Linux Kernel Critical Flaws USN-8373-1

ubuntu
Calendar Grey June 2, 2026
Dist Ubuntu Esm H88
Several security issues fixed in Linux kernel for Ubuntu 24.04 and 22.04 LTS, with updates required for local attack mitigations.
Several security issues were fixed in the Linux kernel.

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: Linux kernel for Oracle Cloud systems

- linux-raspi: Linux kernel for Raspberry Pi systems

- linux-raspi-realtime: Linux ker...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu local attack Linux kernel escalation privilege

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 Ubuntu local attack Linux kernel escalation privilege

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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