Ubuntu 25.10 Linux Kernel 8244-1 Security Flaws CVE-2026-23112 DoS

ubuntu

May 7, 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-oracle: Linux kernel for Oracle Cloud 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

- linux-realtime-6.17: Linux kernel for Real-time 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:

- Network drivers;

- NVME drivers;

- Netfilter;

(CVE-2026-23112, CVE-2026-23231, CVE-2026-23273)

Topics Covered

security advisory Ubuntu kernel linux system compromise flaws

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-realtime  6.17.0-1011.12
  linux-image-6.17.0-1012-oracle  6.17.0-1012.12
  linux-image-6.17.0-1012-oracle-64k  6.17.0-1012.12
  linux-image-6.17.0-1013-aws     6.17.0-1013.13
  linux-image-6.17.0-1013-aws-64k  6.17.0-1013.13
  linux-image-6.17.0-1013-gcp     6.17.0-1013.13
  linux-image-6.17.0-1013-gcp-64k  6.17.0-1013.13
  linux-image-6.17.0-23-generic   6.17.0-23.23
  linux-image-6.17.0-23-generic-64k  6.17.0-23.23
  linux-image-aws                 6.17.0-1013.13
  linux-image-aws-6.17            6.17.0-1013.13
  linux-image-aws-64k             6.17.0-1013.13
  linux-image-aws-64k-6.17        6.17.0-1013.13
  linux-image-gcp                 6.17.0-1013.13
  linux-image-gcp-6.17            6.17.0-1013.13
  linux-image-gcp-64k             6.17.0-1013.13
  linux-image-gcp-64k-6.17        6.17.0-1013.13
  linux-image-generic             6.17.0-23.23
  linux-image-generic-6.17        6.17.0-23.23
  linux-image-generic-64k         6.17.0-23.23
  linux-image-generic-64k-6.17    6.17.0-23.23
  linux-image-oracle              6.17.0-1012.12
  linux-image-oracle-6.17         6.17.0-1012.12
  linux-image-oracle-64k          6.17.0-1012.12
  linux-image-oracle-64k-6.17     6.17.0-1012.12
  linux-image-realtime            6.17.0-1011.12
  linux-image-realtime-6.17       6.17.0-1011.12
  linux-image-virtual             6.17.0-23.23
  linux-image-virtual-6.17        6.17.0-23.23

Ubuntu 24.04 LTS
  linux-image-6.17.0-1011-realtime  6.17.0-1011.12~24.04.1
                                  Available with Ubuntu Pro
  linux-image-6.17.0-1013-aws     6.17.0-1013.13~24.04.1
  linux-image-6.17.0-1013-aws-64k  6.17.0-1013.13~24.04.1
  linux-image-6.17.0-1013-gcp     6.17.0-1013.13~24.04.1
  linux-image-6.17.0-1013-gcp-64k  6.17.0-1013.13~24.04.1
  linux-image-6.17.0-23-generic   6.17.0-23.23~24.04.1
  linux-image-6.17.0-23-generic-64k  6.17.0-23.23~24.04.1
  linux-image-aws                 6.17.0-1013.13~24.04.1
  linux-image-aws-6.17            6.17.0-1013.13~24.04.1
  linux-image-aws-64k             6.17.0-1013.13~24.04.1
  linux-image-aws-64k-6.17        6.17.0-1013.13~24.04.1
  linux-image-gcp                 6.17.0-1013.13~24.04.1
  linux-image-gcp-6.17            6.17.0-1013.13~24.04.1
  linux-image-gcp-64k             6.17.0-1013.13~24.04.1
  linux-image-gcp-64k-6.17        6.17.0-1013.13~24.04.1
  linux-image-generic-6.17        6.17.0-23.23~24.04.1
  linux-image-generic-64k-6.17    6.17.0-23.23~24.04.1
  linux-image-generic-64k-hwe-24.04  6.17.0-23.23~24.04.1
  linux-image-generic-hwe-24.04   6.17.0-23.23~24.04.1
  linux-image-realtime-6.17       6.17.0-1011.12~24.04.1
                                  Available with Ubuntu Pro
  linux-image-realtime-hwe-24.04  6.17.0-1011.12~24.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-6.17        6.17.0-23.23~24.04.1
  linux-image-virtual-hwe-24.04   6.17.0-23.23~24.04.1

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.