Version

7.2.4

Host OS Type

Linux

Host OS name + version

ubuntu 25.10 questing

Host Architecture

x86

Guest OS Type

Linux

Guest Architecture

x86

Guest OS name + version

Kali, Whonix, Windows 10 Build 19045

Component

Other

What happened?

After the last (K)ubuntu upgrade to the kernel/modules to the 6.17.0-1002-realtime release all the Virtal Machines dont start. The starting progression bar stop at the 20% and freeze

How can we reproduce this?

Perform the upgrade of the (k)ubuntu and after the installation of the 6.17.0-1002-realtime perform the installation of the related headers. Then run the /usr/vboxconfig to install the vbox drivers. Restart, run virtualbox manager and start a precedent workig VM.
As example, I add Log files for the two VM Kali and Whonix-Gateway.

Whonix-Gateway_VBox.log
Kali_VBox.log

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.