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Ubuntu 22.04 LTS USN-8180-4 linux-azure-fips Critical Kernel Threats

ubuntu
Calendar Grey April 23, 2026
Dist Ubuntu Esm H88
Ubuntu 22.04 LTS receives critical updates for linux-azure-fips addressing multiple kernel issues and system threats.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

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 ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory network threats critical Ubuntu system compromise linux-azure-fips

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1110-azure-fips  5.15.0-1110.119+fips1
                                  Available with Ubuntu Pro
  linux-image-azure-fips          5.15.0.1110.95
                                  Available with Ubuntu Pro
  linux-image-azure-fips-5.15     5.15.0.1110.95
                                  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-8180-4

https://ubuntu.com/security/notices/USN-8180-3

https://ubuntu.com/security/notices/USN-8180-2

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
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8180-4

Topics%20covered

Topics Covered

security advisory network threats critical Ubuntu system compromise linux-azure-fips

Package Information

https://launchpad.net/ubuntu/+source/linux-azure-fips/5.15.0-1110.119+fips1

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