Re: general protection fault in vmx_vcpu_run (2)
From: Borislav Petkov
Date: Wed Feb 24 2021 - 12:50:38 EST
Hi Dmitry,
On Wed, Feb 24, 2021 at 06:12:57PM +0100, Dmitry Vyukov wrote:
> Looking at the bisection log, the bisection was distracted by something else.
Meaning the bisection result:
167dcfc08b0b ("x86/mm: Increase pgt_buf size for 5-level page tables")
is bogus?
> You can always find the original reported issue over the dashboard link:
> https://syzkaller.appspot.com/bug?extid=42a71c84ef04577f1aef
> or on lore:
> https://lore.kernel.org/lkml/0000000000007ff56205ba985b60@xxxxxxxxxx/
Ok, so this looks like this is trying to run kvm ioctls *in* a guest,
i.e., nested. Right?
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette