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Ubuntu 22.04 LTS Linux Kernel Critical System Compromise Vuln USN-8159-1

Calendar Apr 08, 2026 • User Avatar LinuxSecurity Advisories
5 - 9 min read
Ubuntu Large Esm H500
Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network control
Several security issues were fixed in the Linux kernel. 
==========================================================================
Ubuntu Security Notice USN-8159-1
April 08, 2026

linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke,
linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg,
linux-intel-iotg-5.15, linux-kvm, linux-lowlatency,
linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra,
linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, linux-raspi,
linux-xilinx-zynqmp vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- 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-intel-iotg: Linux kernel for Intel IoT platforms
- linux-kvm: Linux kernel for cloud environments
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-nvidia-tegra: Linux kernel for NVIDIA Tegra systems
- linux-nvidia-tegra-igx: Linux kernel for NVIDIA Tegra IGX systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors
- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-ibm-5.15: Linux kernel for IBM cloud systems
- linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms
- linux-lowlatency-hwe-5.15: Linux low latency kernel
- linux-oracle-5.15: Linux kernel for Oracle Cloud 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:
   - ARM64 architecture;
   - Cryptographic API;
   - Netfilter;
   - Network traffic control;
(CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   linux-image-5.15.0-1045-nvidia-tegra-igx  5.15.0-1045.45
   linux-image-5.15.0-1045-nvidia-tegra-igx-rt  5.15.0-1045.45
   linux-image-5.15.0-1056-nvidia-tegra  5.15.0-1056.56
   linux-image-5.15.0-1056-nvidia-tegra-rt  5.15.0-1056.56
   linux-image-5.15.0-1068-xilinx-zynqmp  5.15.0-1068.72
   linux-image-5.15.0-1087-gkeop   5.15.0-1087.95
   linux-image-5.15.0-1096-kvm     5.15.0-1096.101
   linux-image-5.15.0-1098-ibm     5.15.0-1098.101
   linux-image-5.15.0-1098-raspi   5.15.0-1098.101
   linux-image-5.15.0-1099-intel-iotg  5.15.0-1099.105
   linux-image-5.15.0-1099-nvidia  5.15.0-1099.100
   linux-image-5.15.0-1099-nvidia-lowlatency  5.15.0-1099.100
   linux-image-5.15.0-1100-gke     5.15.0-1100.106
   linux-image-5.15.0-1101-oracle  5.15.0-1101.107
   linux-image-5.15.0-1104-aws     5.15.0-1104.111
   linux-image-5.15.0-1104-aws-64k  5.15.0-1104.111
   linux-image-5.15.0-1104-gcp     5.15.0-1104.113
   linux-image-5.15.0-174-generic  5.15.0-174.184
   linux-image-5.15.0-174-generic-64k  5.15.0-174.184
   linux-image-5.15.0-174-generic-lpae  5.15.0-174.184
   linux-image-5.15.0-174-lowlatency  5.15.0-174.184
   linux-image-5.15.0-174-lowlatency-64k  5.15.0-174.184
   linux-image-aws-5.15            5.15.0.1104.107
   linux-image-aws-64k-5.15        5.15.0.1104.107
   linux-image-aws-64k-lts-22.04   5.15.0.1104.107
   linux-image-aws-lts-22.04       5.15.0.1104.107
   linux-image-gcp-5.15            5.15.0.1104.100
   linux-image-gcp-lts-22.04       5.15.0.1104.100
   linux-image-generic             5.15.0.174.162
   linux-image-generic-5.15        5.15.0.174.162
   linux-image-generic-64k         5.15.0.174.162
   linux-image-generic-64k-5.15    5.15.0.174.162
   linux-image-generic-lpae        5.15.0.174.162
   linux-image-generic-lpae-5.15   5.15.0.174.162
   linux-image-gke                 5.15.0.1100.99
   linux-image-gke-5.15            5.15.0.1100.99
   linux-image-gkeop               5.15.0.1087.86
   linux-image-gkeop-5.15          5.15.0.1087.86
   linux-image-ibm                 5.15.0.1098.94
   linux-image-ibm-5.15            5.15.0.1098.94
   linux-image-intel-iotg          5.15.0.1099.98
   linux-image-intel-iotg-5.15     5.15.0.1099.98
   linux-image-kvm                 5.15.0.1096.92
   linux-image-kvm-5.15            5.15.0.1096.92
   linux-image-lowlatency          5.15.0.174.147
   linux-image-lowlatency-5.15     5.15.0.174.147
   linux-image-lowlatency-64k      5.15.0.174.147
   linux-image-lowlatency-64k-5.15  5.15.0.174.147
   linux-image-nvidia              5.15.0.1099.99
   linux-image-nvidia-5.15         5.15.0.1099.99
   linux-image-nvidia-lowlatency   5.15.0.1099.99
   linux-image-nvidia-lowlatency-5.15  5.15.0.1099.99
   linux-image-nvidia-tegra        5.15.0.1056.56
   linux-image-nvidia-tegra-5.15   5.15.0.1056.56
   linux-image-nvidia-tegra-igx    5.15.0.1045.47
   linux-image-nvidia-tegra-igx-5.15  5.15.0.1045.47
   linux-image-nvidia-tegra-igx-rt  5.15.0.1045.47
   linux-image-nvidia-tegra-igx-rt-5.15  5.15.0.1045.47
   linux-image-nvidia-tegra-rt     5.15.0.1056.56
   linux-image-nvidia-tegra-rt-5.15  5.15.0.1056.56
   linux-image-oracle-5.15         5.15.0.1101.97
   linux-image-oracle-lts-22.04    5.15.0.1101.97
   linux-image-raspi               5.15.0.1098.96
   linux-image-raspi-5.15          5.15.0.1098.96
   linux-image-raspi-nolpae        5.15.0.1098.96
   linux-image-virtual             5.15.0.174.162
   linux-image-virtual-5.15        5.15.0.174.162
   linux-image-xilinx-zynqmp       5.15.0.1068.71
   linux-image-xilinx-zynqmp-5.15  5.15.0.1068.71

Ubuntu 20.04 LTS
   linux-image-5.15.0-1098-ibm     5.15.0-1098.101~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1099-intel-iotg  5.15.0-1099.105~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1101-oracle  5.15.0-1101.107~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1104-aws     5.15.0-1104.111~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1104-gcp     5.15.0-1104.113~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-174-lowlatency  5.15.0-174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-174-lowlatency-64k  5.15.0-174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.15.0.1104.111~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-5.15            5.15.0.1104.111~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp                 5.15.0.1104.113~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp-5.15            5.15.0.1104.113~20.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm                 5.15.0.1098.101~20.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm-5.15            5.15.0.1098.101~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel               5.15.0.1099.105~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg          5.15.0.1099.105~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg-5.15     5.15.0.1099.105~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-5.15     5.15.0.174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-5.15  5.15.0.174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-hwe-20.04  5.15.0.174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-20.04  5.15.0.174.184~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle              5.15.0.1101.107~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle-5.15         5.15.0.1101.107~20.04.1
                                   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-8159-1
   CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111

Package Information:
   https://launchpad.net/ubuntu/+source/linux/5.15.0-174.184
   https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1104.111
   https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1104.113
   https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1100.106
   https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1087.95
   https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1098.101
   https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1099.105
   https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1096.101
   https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-174.184
   https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1099.100
   https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5.15.0-1056.56
   https://launchpad.net/ubuntu/+source/linux-nvidia-tegra-igx/5.15.0-1045.45
   https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1101.107
   https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1098.101
   https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1068.72

Ubuntu 22.04 LTS Linux Kernel Critical System Compromise Vuln USN-8159-1

ubuntu
Calendar Grey April 8, 2026
Dist Ubuntu Esm H88
Several security issues addressed in Ubuntu Linux kernel fixing potential system compromise risks and enhancing stability.
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems - 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-intel-iotg: Linux kernel for Intel IoT platforms - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-nvidia-tegra: Linux kernel for NVIDIA Tegra systems - linux-nvidia-tegra-igx: Linux kernel for NVIDIA Tegra IGX systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-xilinx-zynqmp: L...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network control

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1045-nvidia-tegra-igx 5.15.0-1045.45 linux-image-5.15.0-1045-nvidia-tegra-igx-rt 5.15.0-1045.45 linux-image-5.15.0-1056-nvidia-tegra 5.15.0-1056.56 linux-image-5.15.0-1056-nvidia-tegra-rt 5.15.0-1056.56 linux-image-5.15.0-1068-xilinx-zynqmp 5.15.0-1068.72 linux-image-5.15.0-1087-gkeop 5.15.0-1087.95 linux-image-5.15.0-1096-kvm 5.15.0-1096.101 linux-image-5.15.0-1098-ibm 5.15.0-1098.101 linux-image-5.15.0-1098-raspi 5.15.0-1098.101 linux-image-5.15.0-1099-intel-iotg 5.15.0-1099.105 linux-image-5.15.0-1099-nvidia 5.15.0-1099.100 linux-image-5.15.0-1099-nvidia-lowlatency 5.15.0-1099.100 linux-image-5.15.0-1100-gke 5.15.0-1100.106 linux-image-5.15.0-1101-oracle 5.15.0-1101.107 linux-image-5.15.0-1104-aws 5.15.0-1104.111 linux-image-5.15.0-1104-aws-64k 5.15.0-1104.111 linux-image-5.15.0-1104-gcp 5.15.0-1104.113 linux-image-5.15.0-174-generic 5.15.0-174.184 linux-image-5.15.0-174-generic-64k 5.15.0-174.184 linux-image-5.15.0-174-generic-lpae 5.15.0-174.184 linux-image-5.15.0-174-lowlatency 5.15.0-174.184 linux-image-5.15.0-174-lowlatency-64k 5.15.0-174.184 linux-image-aws-5.15 5.15.0.1104.107 linux-image-aws-64k-5.15 5.15.0.1104.107 linux-image-aws-64k-lts-22.04 5.15.0.1104.107 linux-image-aws-lts-22.04 5.15.0.1104.107 linux-image-gcp-5.15 5.15.0.1104.100 linux-image-gcp-lts-22.04 5.15.0.1104.100 linux-image-generic 5.15.0.174.162 linux-image-generic-5.15 5.15.0.174.162 linux-image-generic-64k 5.15.0.174.162 linux-image-generic-64k-5.15 5.15.0.174.162 linux-image-generic-lpae 5.15.0.174.162 linux-image-generic-lpae-5.15 5.15.0.174.162 linux-image-gke 5.15.0.1100.99 linux-image-gke-5.15 5.15.0.1100.99 linux-image-gkeop 5.15.0.1087.86 linux-image-gkeop-5.15 5.15.0.1087.86 linux-image-ibm 5.15.0.1098.94 linux-image-ibm-5.15 5.15.0.1098.94 linux-image-intel-iotg 5.15.0.1099.98 linux-image-intel-iotg-5.15 5.15.0.1099.98 linux-image-kvm 5.15.0.1096.92 linux-image-kvm-5.15 5.15.0.1096.92 linux-image-lowlatency 5.15.0.174.147 linux-image-lowlatency-5.15 5.15.0.174.147 linux-image-lowlatency-64k 5.15.0.174.147 linux-image-lowlatency-64k-5.15 5.15.0.174.147 linux-image-nvidia 5.15.0.1099.99 linux-image-nvidia-5.15 5.15.0.1099.99 linux-image-nvidia-lowlatency 5.15.0.1099.99 linux-image-nvidia-lowlatency-5.15 5.15.0.1099.99 linux-image-nvidia-tegra 5.15.0.1056.56 linux-image-nvidia-tegra-5.15 5.15.0.1056.56 linux-image-nvidia-tegra-igx 5.15.0.1045.47 linux-image-nvidia-tegra-igx-5.15 5.15.0.1045.47 linux-image-nvidia-tegra-igx-rt 5.15.0.1045.47 linux-image-nvidia-tegra-igx-rt-5.15 5.15.0.1045.47 linux-image-nvidia-tegra-rt 5.15.0.1056.56 linux-image-nvidia-tegra-rt-5.15 5.15.0.1056.56 linux-image-oracle-5.15 5.15.0.1101.97 linux-image-oracle-lts-22.04 5.15.0.1101.97 linux-image-raspi 5.15.0.1098.96 linux-image-raspi-5.15 5.15.0.1098.96 linux-image-raspi-nolpae 5.15.0.1098.96 linux-image-virtual 5.15.0.174.162 linux-image-virtual-5.15 5.15.0.174.162 linux-image-xilinx-zynqmp 5.15.0.1068.71 linux-image-xilinx-zynqmp-5.15 5.15.0.1068.71 Ubuntu 20.04 LTS linux-image-5.15.0-1098-ibm 5.15.0-1098.101~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1099-intel-iotg 5.15.0-1099.105~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1101-oracle 5.15.0-1101.107~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1104-aws 5.15.0-1104.111~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1104-gcp 5.15.0-1104.113~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-174-lowlatency 5.15.0-174.184~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-174-lowlatency-64k 5.15.0-174.184~20.04.1 Available with Ubuntu Pro linux-image-aws 5.15.0.1104.111~20.04.1 Available with Ubuntu Pro linux-image-aws-5.15 5.15.0.1104.111~20.04.1 Available with Ubuntu Pro linux-image-gcp 5.15.0.1104.113~20.04.1 Available with Ubuntu Pro linux-image-gcp-5.15 5.15.0.1104.113~20.04.1 Available with Ubuntu Pro linux-image-ibm 5.15.0.1098.101~20.04.1 Available with Ubuntu Pro linux-image-ibm-5.15 5.15.0.1098.101~20.04.1 Available with Ubuntu Pro linux-image-intel 5.15.0.1099.105~20.04.1 Available with Ubuntu Pro linux-image-intel-iotg 5.15.0.1099.105~20.04.1 Available with Ubuntu Pro linux-image-intel-iotg-5.15 5.15.0.1099.105~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.15 5.15.0.174.184~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-5.15 5.15.0.174.184~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-hwe-20.04 5.15.0.174.184~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-20.04 5.15.0.174.184~20.04.1 Available with Ubuntu Pro linux-image-oracle 5.15.0.1101.107~20.04.1 Available with Ubuntu Pro linux-image-oracle-5.15 5.15.0.1101.107~20.04.1 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-8159-1

CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8159-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network control

Package Information

https://launchpad.net/ubuntu/+source/linux/5.15.0-174.184 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1104.111 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1104.113 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1100.106 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1087.95 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1098.101 https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1099.105 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1096.101 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-174.184 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1099.100 https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5.15.0-1056.56 https://launchpad.net/ubuntu/+source/linux-nvidia-tegra-igx/5.15.0-1045.45 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1101.107 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1098.101 https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1068.72

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