Ubuntu 24.10: 7489-2 critical linux-realtime system crash
ubuntu
May 7, 2025
The system could be made to crash under certain conditions.
Summary
The system could be made to crash under certain conditions.
Software Description:
- linux-realtime: Linux kernel for Real-time systems
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;
(CVE-2025-21813)
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.10
linux-image-6.11.0-1009-realtime 6.11.0-1009.9
Available with Ubuntu Pro
linux-image-realtime 6.11.0-1009.9
Available with Ubuntu Pro
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-7489-2
https://ubuntu.com/security/notices/USN-7489-1
CVE-2025-21813
PREVIOUS
NEXT
Severity
critical
Lowest
Low
Medium
High
Critical
Ubuntu Security Notice USN-7489-2
Topics Covered
Package Information
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!