From: David Woodhouse <dwmw2@infradead.org>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: 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: Fri, 22 Mar 2024 11:39:56 +0000 [thread overview]
Message-ID: <ecaf87b40d6da2ca39a5eaf94d2efded2ae3368c.camel@infradead.org> (raw)
In-Reply-To: <20240320001542.3203871-1-seanjc@google.com>
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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?
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next prev parent reply other threads:[~2024-03-22 11:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 0:15 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 ` David Woodhouse [this message]
2024-04-08 23:21 ` [PATCH 0/3] KVM: Fix for a mostly benign gpc WARN Sean Christopherson
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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