VirtualBox

Opened 20 months ago

#21435 new defect

Vboxdrv module triggers IBT protection. VM's fail to start

Reported by: bepaald Owned by:
Component: other Version: VirtualBox-7.0.6
Keywords: vboxdrv IBT Cc:
Guest type: all Host type: Linux

Description

This has been a problem for a while: The vboxdrv triggers IBT (indirect branch tracking) protection on modern Intel cpu's. This causes the VM to refuse to load.

Disabling IBT (booting the kernel with ibt=off) will make the problem disappear, but the protections are there for a reason. IBT is enabled by default on Arch Linux, but I believe IBT will be enabled by default in the upcoming 6.2 linux kernel release for Intel CPU's from the 11th generation up to the current (13th) gen. More and more CPU's will be affected.

A full log from trying to start a VM is attached. Though it is very short, nothing more happens. Also attached is dmesg output showing the protection being triggered in the kernel when starting a VM.

A bug report was also made filed with the kernel (https://bugzilla.kernel.org/show_bug.cgi?id=216102) and in Arch (https://bugs.archlinux.org/task/75481), but the latter suggested to file a bug with Virtualbox, which is what I'm doing now. Please let me know if I can provide more information.

Thanks!

Attachments (2)

vboxlog (1.7 KB ) - added by bepaald 20 months ago.
VBox log
dmesglog (5.7 KB ) - added by bepaald 20 months ago.
Dmesg output

Download all attachments as: .zip

Change History (2)

by bepaald, 20 months ago

Attachment: vboxlog added

VBox log

by bepaald, 20 months ago

Attachment: dmesglog added

Dmesg output

Note: See TracTickets for help on using tickets.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy