1. Ubuntu Security Notices
  2. USN-7920-1

USN-7920-1: Linux kernel vulnerabilities

Publication date

10 December 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • 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

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:

  • Tracing infrastructure;
  • Netfilter

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:

  • Tracing infrastructure;
  • Netfilter

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
25.10 questing linux-image-6.17.0-1004-realtime –  6.17.0-1004.5
linux-image-6.17.0-1005-aws –  6.17.0-1005.5
linux-image-6.17.0-1005-aws-64k –  6.17.0-1005.5
linux-image-6.17.0-1005-gcp –  6.17.0-1005.5
linux-image-6.17.0-1005-gcp-64k –  6.17.0-1005.5
linux-image-6.17.0-8-generic –  6.17.0-8.8
linux-image-6.17.0-8-generic-64k –  6.17.0-8.8
linux-image-aws –  6.17.0-1005.5
linux-image-aws-6.17 –  6.17.0-1005.5
linux-image-aws-64k –  6.17.0-1005.5
linux-image-aws-64k-6.17 –  6.17.0-1005.5
linux-image-gcp –  6.17.0-1005.5
linux-image-gcp-6.17 –  6.17.0-1005.5
linux-image-gcp-64k –  6.17.0-1005.5
linux-image-gcp-64k-6.17 –  6.17.0-1005.5
linux-image-generic –  6.17.0-8.8
linux-image-generic-6.17 –  6.17.0-8.8
linux-image-generic-64k –  6.17.0-8.8
linux-image-generic-64k-6.17 –  6.17.0-8.8
linux-image-generic-64k-hwe-24.04 –  6.17.0-8.8
linux-image-generic-64k-hwe-24.04-edge –  6.17.0-8.8
linux-image-generic-hwe-24.04 –  6.17.0-8.8
linux-image-generic-hwe-24.04-edge –  6.17.0-8.8
linux-image-oem-24.04 –  6.17.0-8.8
linux-image-oem-24.04c –  6.17.0-8.8
linux-image-realtime –  6.17.0-1004.5
linux-image-realtime-6.17 –  6.17.0-1004.5
linux-image-realtime-hwe-24.04 –  6.17.0-1004.5
linux-image-realtime-hwe-24.04-edge –  6.17.0-1004.5
linux-image-virtual –  6.17.0-8.8
linux-image-virtual-6.17 –  6.17.0-8.8
linux-image-virtual-hwe-24.04 –  6.17.0-8.8
linux-image-virtual-hwe-24.04-edge –  6.17.0-8.8

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References

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