int 1 in ring-3 in guest OS crashes VirtualBox on host -> fixed in SVN

[pdeboer]

Using the int 1 instruction \xf1 crashes virtual box.

Example code: int main () {

unsigned char buf = '\xf1'; void (*f)() = (void (*)(void))&buf; f();

}

Using the 'normal' way of calling an interrupt, '\xcd\x01' does not result in a crash.

[sandervl73]

Please attach your VBox.log.

[pdeboer]

Sorry, friday-afternoon brain lag..

VirtualBox itself does not crash, only the guest OS gets into a 'stuck' state and a VB pop-up gives the option to debug the guest OS or stop it.

[sandervl73]

I can't reproduce this here. Could you try again with 2.0.6?

[pdeboer]

PoC VirtualBox crash tool

[pdeboer]

It still crashes 2.0.6. I've attached the Windows executable I'm using.

The problem only seems to exist when 'VT-x/AMD-V' is turned on for this VM. The host system has a Core2Duo (T8300) processor.

[sandervl73]

The problem is no longer present in the current source tree. I was able to reproduce it with 2.0.6 too.

[sandervl73]

Fixed in 2.1.