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Ubuntu 22.04 LTS Kernel Security Advisory USN-8180-1 Critical Update

Calendar Apr 16, 2026 • User Avatar LinuxSecurity Advisories
5 - 9 min read
Ubuntu Large Esm H500
Topics%20covered

Topics Covered

security advisory kernel update Ubuntu important system compromise Linux kernel
Several security issues were fixed in the Linux kernel. 
==========================================================================
Ubuntu Security Notice USN-8180-1
April 16, 2026

linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop,
linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle
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-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems
- linux-lowlatency-hwe-5.15: Linux low latency kernel

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;
  - Block layer subsystem;
  - Drivers core;
  - Bluetooth drivers;
  - DMA engine subsystem;
  - GPU drivers;
  - HID subsystem;
  - Intel Trace Hub HW tracing drivers;
  - IIO ADC drivers;
  - IRQ chip drivers;
  - Modular ISDN driver;
  - LED subsystem;
  - UACCE accelerator framework;
  - Ethernet bonding driver;
  - Network drivers;
  - STMicroelectronics network drivers;
  - Ethernet team driver;
  - NVME drivers;
  - PHY drivers;
  - SLIMbus drivers;
  - W1 Dallas's 1-wire bus driver;
  - Xen hypervisor drivers;
  - BTRFS file system;
  - Ext4 file system;
  - Network file system (NFS) client;
  - Network file system (NFS) server daemon;
  - NTFS3 file system;
  - SMB network file system;
  - NFC subsystem;
  - BPF subsystem;
  - IRQ subsystem;
  - Memory management;
  - Bluetooth subsystem;
  - CAN network layer;
  - Networking core;
  - IPv4 networking;
  - IPv6 networking;
  - L2TP protocol;
  - NET/ROM layer;
  - Network traffic control;
  - SCTP protocol;
  - TLS protocol;
  - XFRM subsystem;
  - Creative Sound Blaster X-Fi driver;
  - USB sound devices;
(CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207,
CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408,
CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211,
CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817,
CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186,
CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194,
CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997,
CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003,
CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037,
CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058,
CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071,
CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078,
CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085,
CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,
CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097,
CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103,
CVE-2026-23105, CVE-2026-23108, CVE-2026-23119, CVE-2026-23120,
CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128,
CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150,
CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1088-gkeop   5.15.0-1088.96
  linux-image-5.15.0-1100-nvidia  5.15.0-1100.101
  linux-image-5.15.0-1100-nvidia-lowlatency  5.15.0-1100.101
  linux-image-5.15.0-1101-gke     5.15.0-1101.107
  linux-image-5.15.0-1102-oracle  5.15.0-1102.108
  linux-image-5.15.0-1105-aws     5.15.0-1105.112
  linux-image-5.15.0-1105-aws-64k  5.15.0-1105.112
  linux-image-5.15.0-1105-gcp     5.15.0-1105.114
  linux-image-5.15.0-175-lowlatency  5.15.0-175.185
  linux-image-5.15.0-175-lowlatency-64k  5.15.0-175.185
  linux-image-5.15.0-176-generic  5.15.0-176.186
  linux-image-5.15.0-176-generic-64k  5.15.0-176.186
  linux-image-5.15.0-176-generic-lpae  5.15.0-176.186
  linux-image-aws-5.15            5.15.0.1105.108
  linux-image-aws-64k-5.15        5.15.0.1105.108
  linux-image-aws-64k-lts-22.04   5.15.0.1105.108
  linux-image-aws-lts-22.04       5.15.0.1105.108
  linux-image-gcp-5.15            5.15.0.1105.101
  linux-image-gcp-lts-22.04       5.15.0.1105.101
  linux-image-generic             5.15.0.176.161
  linux-image-generic-5.15        5.15.0.176.161
  linux-image-generic-64k         5.15.0.176.161
  linux-image-generic-64k-5.15    5.15.0.176.161
  linux-image-generic-lpae        5.15.0.176.161
  linux-image-generic-lpae-5.15   5.15.0.176.161
  linux-image-gke                 5.15.0.1101.100
  linux-image-gke-5.15            5.15.0.1101.100
  linux-image-gkeop               5.15.0.1088.87
  linux-image-gkeop-5.15          5.15.0.1088.87
  linux-image-lowlatency          5.15.0.175.148
  linux-image-lowlatency-5.15     5.15.0.175.148
  linux-image-lowlatency-64k      5.15.0.175.148
  linux-image-lowlatency-64k-5.15  5.15.0.175.148
  linux-image-nvidia              5.15.0.1100.100
  linux-image-nvidia-5.15         5.15.0.1100.100
  linux-image-nvidia-lowlatency   5.15.0.1100.100
  linux-image-nvidia-lowlatency-5.15  5.15.0.1100.100
  linux-image-oracle-5.15         5.15.0.1102.98
  linux-image-oracle-lts-22.04    5.15.0.1102.98
  linux-image-virtual             5.15.0.176.161
  linux-image-virtual-5.15        5.15.0.176.161

Ubuntu 20.04 LTS
  linux-image-5.15.0-1105-aws     5.15.0-1105.112~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-175-lowlatency  5.15.0-175.185~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-175-lowlatency-64k  5.15.0-175.185~20.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 5.15.0.1105.112~20.04.1
                                  Available with Ubuntu Pro
  linux-image-aws-5.15            5.15.0.1105.112~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-5.15     5.15.0.175.185~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-64k-5.15  5.15.0.175.185~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-64k-hwe-20.04  5.15.0.175.185~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-hwe-20.04  5.15.0.175.185~20.04.1
                                  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-8180-1
  CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207,
  CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408,
  CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211,
  CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817,
  CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186,
  CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194,
  CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997,
  CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003,
  CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037,
  CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058,
  CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071,
  CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078,
  CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085,
  CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,
  CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097,
  CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103,
  CVE-2026-23105, CVE-2026-23108, CVE-2026-23119, CVE-2026-23120,
  CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128,
  CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150,
  CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209

Package Information:
  https://launchpad.net/ubuntu/+source/linux/5.15.0-176.186
  https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1105.112
  https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1105.114
  https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1101.107
  https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1088.96
  https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-175.185
  https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1100.101
  https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1102.108

Ubuntu 22.04 LTS Kernel Security Advisory USN-8180-1 Critical Update

ubuntu
Calendar Grey April 16, 2026
Dist Ubuntu Esm H88
Multiple security issues fixed in Linux kernel for Ubuntu releases. Critical updates needed to secure the system environments.
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-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-lowlatency-hwe-5.15: Linux low latency kernel 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; - Block layer subsy...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory kernel update Ubuntu important system compromise Linux kernel

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1088-gkeop 5.15.0-1088.96 linux-image-5.15.0-1100-nvidia 5.15.0-1100.101 linux-image-5.15.0-1100-nvidia-lowlatency 5.15.0-1100.101 linux-image-5.15.0-1101-gke 5.15.0-1101.107 linux-image-5.15.0-1102-oracle 5.15.0-1102.108 linux-image-5.15.0-1105-aws 5.15.0-1105.112 linux-image-5.15.0-1105-aws-64k 5.15.0-1105.112 linux-image-5.15.0-1105-gcp 5.15.0-1105.114 linux-image-5.15.0-175-lowlatency 5.15.0-175.185 linux-image-5.15.0-175-lowlatency-64k 5.15.0-175.185 linux-image-5.15.0-176-generic 5.15.0-176.186 linux-image-5.15.0-176-generic-64k 5.15.0-176.186 linux-image-5.15.0-176-generic-lpae 5.15.0-176.186 linux-image-aws-5.15 5.15.0.1105.108 linux-image-aws-64k-5.15 5.15.0.1105.108 linux-image-aws-64k-lts-22.04 5.15.0.1105.108 linux-image-aws-lts-22.04 5.15.0.1105.108 linux-image-gcp-5.15 5.15.0.1105.101 linux-image-gcp-lts-22.04 5.15.0.1105.101 linux-image-generic 5.15.0.176.161 linux-image-generic-5.15 5.15.0.176.161 linux-image-generic-64k 5.15.0.176.161 linux-image-generic-64k-5.15 5.15.0.176.161 linux-image-generic-lpae 5.15.0.176.161 linux-image-generic-lpae-5.15 5.15.0.176.161 linux-image-gke 5.15.0.1101.100 linux-image-gke-5.15 5.15.0.1101.100 linux-image-gkeop 5.15.0.1088.87 linux-image-gkeop-5.15 5.15.0.1088.87 linux-image-lowlatency 5.15.0.175.148 linux-image-lowlatency-5.15 5.15.0.175.148 linux-image-lowlatency-64k 5.15.0.175.148 linux-image-lowlatency-64k-5.15 5.15.0.175.148 linux-image-nvidia 5.15.0.1100.100 linux-image-nvidia-5.15 5.15.0.1100.100 linux-image-nvidia-lowlatency 5.15.0.1100.100 linux-image-nvidia-lowlatency-5.15 5.15.0.1100.100 linux-image-oracle-5.15 5.15.0.1102.98 linux-image-oracle-lts-22.04 5.15.0.1102.98 linux-image-virtual 5.15.0.176.161 linux-image-virtual-5.15 5.15.0.176.161 Ubuntu 20.04 LTS linux-image-5.15.0-1105-aws 5.15.0-1105.112~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-175-lowlatency 5.15.0-175.185~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-175-lowlatency-64k 5.15.0-175.185~20.04.1 Available with Ubuntu Pro linux-image-aws 5.15.0.1105.112~20.04.1 Available with Ubuntu Pro linux-image-aws-5.15 5.15.0.1105.112~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.15 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-5.15 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-hwe-20.04 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-20.04 5.15.0.175.185~20.04.1 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-8180-1

CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207,

CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408,

CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211,

CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817,

CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186,

CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194,

CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997,

CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003,

CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037,

CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058,

CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071,

CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078,

CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085,

CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,

CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097,

CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103,

CVE-2026-23105, CVE-2026-23108, CVE-2026-23119, CVE-2026-23120,

CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128,

CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150,

CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8180-1

Topics%20covered

Topics Covered

security advisory kernel update Ubuntu important system compromise Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/5.15.0-176.186 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1105.112 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1105.114 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1101.107 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1088.96 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-175.185 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1100.101 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1102.108

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