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Ubuntu 25.10 Linux Azure Kernel Critical Issues USN-8149-3

ubuntu
Calendar Grey April 13, 2026
Dist Ubuntu Esm H88
Several security issues fixed in Ubuntu Linux kernel 6.17 for Azure cloud systems with critical updates.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-azure-6.17: Linux kernel for Microsoft Azure 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:

- Cryptographic API;

- Netfilter;

- Network traffic control;

(CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)

Topics%20covered

Topics Covered

security advisory security issue critical Ubuntu system compromise linux-azure

Update Instructions

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

Ubuntu 25.10
   linux-image-6.17.0-1011-azure   6.17.0-1011.11
   linux-image-azure               6.17.0-1011.11
   linux-image-azure-6.17          6.17.0-1011.11

Ubuntu 24.04 LTS
   linux-image-6.17.0-1011-azure   6.17.0-1011.11~24.04.2
   linux-image-azure               6.17.0-1011.11~24.04.2
   linux-image-azure-6.17          6.17.0-1011.11~24.04.2

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-8149-3

https://ubuntu.com/security/notices/USN-8149-2

https://ubuntu.com/security/notices/USN-8149-1

CVE-2026-23060, CVE-2026-23074, CVE-2026-23111

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8149-3

Topics%20covered

Topics Covered

security advisory security issue critical Ubuntu system compromise linux-azure

Package Information

https://launchpad.net/ubuntu/+source/linux-azure/6.17.0-1011.11
https://launchpad.net/ubuntu/+source/linux-azure-6.17/6.17.0-1011.11~24.04.2

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