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

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Message-ID: <0d59375c-9313-d31a-4af9-d68115e05d55@redhat.com>
Date:   Tue, 18 Jun 2019 11:43:29 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Radim Krčmář <rkrcmar@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        vkuznets@...hat.com, stable@...r.kernel.org
Subject: Re: [PATCH 22/43] KVM: nVMX: Don't dump VMCS if virtual APIC page
 can't be mapped

On 17/06/19 22:07, Sean Christopherson wrote:
> On Mon, Jun 17, 2019 at 09:17:24PM +0200, Radim Krčmář wrote:
>> 2019-06-13 19:03+0200, Paolo Bonzini:
>>> From: Sean Christopherson <sean.j.christopherson@...el.com>
>>>
>>> ... 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@...r.kernel.org
>>> Cc: Paolo Bonzini <pbonzini@...hat.com>
>>> Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>
>>> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
>>> ---
>>
>> 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 spinics.net comes up which mangles the domain.  I should just
subscribe to kvm@...r.kernel.org since Gmane has gotten less reliable,
or set up a Patchew instance for it.

Paolo