From: Sean Christopherson <seanjc@google.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
syzbot+106a4f72b0474e1d1b33@syzkaller.appspotmail.com,
Paul Durrant <paul@xen.org>
Subject: Re: [PATCH 0/3] KVM: Fix for a mostly benign gpc WARN
Date: Mon, 8 Apr 2024 16:21:05 -0700 [thread overview]
Message-ID: <ZhR74WgWxO4MQcbl@google.com> (raw)
In-Reply-To: <ecaf87b40d6da2ca39a5eaf94d2efded2ae3368c.camel@infradead.org>
On Fri, Mar 22, 2024, David Woodhouse wrote:
> On Tue, 2024-03-19 at 17:15 -0700, Sean Christopherson wrote:
> > Fix a bug found by syzkaller, thanks to a new WARN sanity check, where KVM
> > marks a gfn_to_pfn_cache as active without actually setting gpc->gpa or any
> > other metadata. On top, harden against _directly_ setting gpc->gpa to KVM's
> > magic INVALID_GPA, which would also fail the sanity check.
> >
> > Sean Christopherson (3):
> > KVM: Add helpers to consolidate gfn_to_pfn_cache's page split check
> > KVM: Check validity of offset+length of gfn_to_pfn_cache prior to
> > activation
> > KVM: Explicitly disallow activatating a gfn_to_pfn_cache with
> > INVALID_GPA
>
> It looks like these conflict with
> https://lore.kernel.org/kvm/20240227115648.3104-9-dwmw2@infradead.org/
>
> Want to arrange them to come after it?
Very belated, yes. Though by the time you read this, they should be in
kvm-x86/next.
next prev parent reply other threads:[~2024-04-08 23:21 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 0:15 [PATCH 0/3] KVM: Fix for a mostly benign gpc WARN Sean Christopherson
2024-03-20 0:15 ` [PATCH 1/3] KVM: Add helpers to consolidate gfn_to_pfn_cache's page split check Sean Christopherson
2024-03-20 8:20 ` David Woodhouse
2024-03-21 11:07 ` Paul Durrant
2024-03-20 0:15 ` [PATCH 2/3] KVM: Check validity of offset+length of gfn_to_pfn_cache prior to activation Sean Christopherson
2024-03-20 8:20 ` David Woodhouse
2024-03-21 11:11 ` Paul Durrant
2024-03-20 0:15 ` [PATCH 3/3] KVM: Explicitly disallow activatating a gfn_to_pfn_cache with INVALID_GPA Sean Christopherson
2024-03-20 8:20 ` David Woodhouse
2024-03-21 11:13 ` Paul Durrant
2024-03-22 11:39 ` [PATCH 0/3] KVM: Fix for a mostly benign gpc WARN David Woodhouse
2024-04-08 23:21 ` Sean Christopherson [this message]
2024-04-09 2:33 ` David Woodhouse
2024-04-09 14:28 ` Sean Christopherson
2024-04-09 2:01 ` Sean Christopherson
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