1. Ubuntu Security Notices
  2. USN-7489-2

USN-7489-2: Linux kernel (Real-time) vulnerability

Publication date

7 May 2025

Overview

The system could be made to crash under certain conditions.

Releases

Packages

Details

A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:

  • Timer subsystem

A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:

  • Timer subsystem

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
24.10 oracular linux-image-6.11.0-1009-realtime –  6.11.0-1009.9  
linux-image-realtime –  6.11.0-1009.9  

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References

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