Version

7.2.0

Host OS Type

Linux

Host OS name + version

Ubuntu 24.04.3

Host Architecture

x86

Guest OS Type

all

Guest Architecture

x86

Guest OS name + version

all

Component

VMM

What happened?

Virtualbox should install modprobe config to avoid conflict with KVM kernel module on Linux 6.12+.
Without this config, VMs will fail to start due critical error.

Ex:
/etc/modprobe.d/virtualbox-kvm-autodisable.conf:

#
# In kernel 6.12, KVM initializes virtualization on module loading by
# default. This prevents VirtualBox VMs from starting. In order to
# avoid this, block loading kvm module by default.
# (No need to do manually execute modprobe -r kvm_xxx and so on)
# See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1082157
#
options kvm     enable_virt_at_load=0

Note: Borrowed from Debian package.

How can we reproduce this?

1. Install Virtualbox on Debian 13 or Ubuntu 24.04.3 (or any other Linux host with Kernel 6.12+)
2. Create any VM
3. Try to start

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

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