Ubuntu 25.10 USN 8149-1 Linux Kernel Critical Risks Network Control

ubuntu

April 2, 2026

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-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-realtime: Linux kernel for Real-time systems

- linux-aws-6.17: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-6.17: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-6.17: Linux hardware enablement (HWE) 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:

- Cryptographic API;

- Netfilter;

- Network traffic control;

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

Topics Covered

security advisory Ubuntu kernel system update network control cryptographic api

Update Instructions

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

Ubuntu 25.10
   linux-image-6.17.0-1009-realtime  6.17.0-1009.10
   linux-image-6.17.0-1010-aws     6.17.0-1010.10
   linux-image-6.17.0-1010-aws-64k  6.17.0-1010.10
   linux-image-6.17.0-1010-gcp     6.17.0-1010.10
   linux-image-6.17.0-1010-gcp-64k  6.17.0-1010.10
   linux-image-6.17.0-20-generic   6.17.0-20.20
   linux-image-6.17.0-20-generic-64k  6.17.0-20.20
   linux-image-aws                 6.17.0-1010.10
   linux-image-aws-6.17            6.17.0-1010.10
   linux-image-aws-64k             6.17.0-1010.10
   linux-image-aws-64k-6.17        6.17.0-1010.10
   linux-image-gcp                 6.17.0-1010.10
   linux-image-gcp-6.17            6.17.0-1010.10
   linux-image-gcp-64k             6.17.0-1010.10
   linux-image-gcp-64k-6.17        6.17.0-1010.10
   linux-image-generic             6.17.0-20.20
   linux-image-generic-6.17        6.17.0-20.20
   linux-image-generic-64k         6.17.0-20.20
   linux-image-generic-64k-6.17    6.17.0-20.20
   linux-image-realtime            6.17.0-1009.10
   linux-image-realtime-6.17       6.17.0-1009.10
   linux-image-virtual             6.17.0-20.20
   linux-image-virtual-6.17        6.17.0-20.20

Ubuntu 24.04 LTS
   linux-image-6.17.0-1010-aws     6.17.0-1010.10~24.04.1
   linux-image-6.17.0-1010-aws-64k  6.17.0-1010.10~24.04.1
   linux-image-6.17.0-1010-gcp     6.17.0-1010.10~24.04.1
   linux-image-6.17.0-1010-gcp-64k  6.17.0-1010.10~24.04.1
   linux-image-6.17.0-20-generic   6.17.0-20.20~24.04.1
   linux-image-6.17.0-20-generic-64k  6.17.0-20.20~24.04.1
   linux-image-aws                 6.17.0-1010.10~24.04.1
   linux-image-aws-6.17            6.17.0-1010.10~24.04.1
   linux-image-aws-64k             6.17.0-1010.10~24.04.1
   linux-image-aws-64k-6.17        6.17.0-1010.10~24.04.1
   linux-image-gcp                 6.17.0-1010.10~24.04.1
   linux-image-gcp-6.17            6.17.0-1010.10~24.04.1
   linux-image-gcp-64k             6.17.0-1010.10~24.04.1
   linux-image-gcp-64k-6.17        6.17.0-1010.10~24.04.1
   linux-image-generic-6.17        6.17.0-20.20~24.04.1
   linux-image-generic-64k-6.17    6.17.0-20.20~24.04.1
   linux-image-generic-64k-hwe-24.04  6.17.0-20.20~24.04.1
   linux-image-generic-hwe-24.04   6.17.0-20.20~24.04.1
   linux-image-virtual-6.17        6.17.0-20.20~24.04.1
   linux-image-virtual-hwe-24.04   6.17.0-20.20~24.04.1

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.