Re: [PATCH 22/43] KVM: nVMX: Don't dump VMCS if virtual APIC page can't be mapped

From: Paolo Bonzini
Date: Tue Jun 18 2019 - 05:48:31 EST

On 17/06/19 22:07, Sean Christopherson wrote:
> On Mon, Jun 17, 2019 at 09:17:24PM +0200, Radim KrÄmÃÅ wrote:
>> 2019-06-13 19:03+0200, Paolo Bonzini:
>>> From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>>> ... as a malicious userspace can run a toy guest to generate invalid
>>> virtual-APIC page addresses in L1, i.e. flood the kernel log with error
>>> messages.
>>> Fixes: 690908104e39d ("KVM: nVMX: allow tests to use bad virtual-APIC page address")
>>> Cc: stable@xxxxxxxxxxxxxxx
>>> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
>>> Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>>> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
>>> ---
>> Makes me wonder why it looks like this in kvm/queue. :)
> Presumably something is wonky in Paolo's workflow, this happened before.

It's more my non-workflow... when I cannot find a patch for some reason
(deleted by mistake, eaten by Gmane, etc.), I search it with Google and
sometimes comes up which mangles the domain. I should just
subscribe to kvm@xxxxxxxxxxxxxxx since Gmane has gotten less reliable,
or set up a Patchew instance for it.