Re: WARNING in free_loaded_vmcs (2)

[Paolo Bonzini]

On 14/08/2018 22:41, Dmitry Vyukov wrote:
> On Tue, Aug 14, 2018 at 10:16 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
>> Is there anything that was changed in syzkaller and is causing it to
>> find all these bugs?
> Nothing has changed on syzkaller side as far as I can tell.

And the failures started to appear on 20180806 when I did the big KVM
update from 85eae57bbb0612387201635659be543aaac2109e to
8c154ff6ee99d2d467c3c964ef6a478ca7614155.

They all seem related to some use-after-free on exit, and there is a
reproducer at https://syzkaller.appspot.com/x/repro.c?x=122d6672400000,
but it doesn't immediately cause the failure for me.

Paolo