linux-kernel - [PATCH 0/2] KVM: nVMX: fix lifetime issues for vmcs02 and shadow VMCS

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Message-Id: <1405946005-4228-1-git-send-email-pbonzini@redhat.com>
Date:	Mon, 21 Jul 2014 14:33:23 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	bdas@...hat.com, wanpeng.li@...ux.intel.com, kvm@...r.kernel.org,
	jan.kiszka@...mens.com, mtosatti@...hat.com
Subject: [PATCH 0/2] KVM: nVMX: fix lifetime issues for vmcs02 and shadow VMCS

I think that commit 26a865f4aa8e (KVM: VMX: fix use after free of
vmx->loaded_vmcs, 2014-01-03) was wrong, as it introduced a use of
a dangling vmcs02. 

The first patch introduces what I think is the right fix, while the
second patch strengthens the invariants around nested_release_vmcs12.

Paolo Bonzini (2):
  KVM: nVMX: fix lifetime issues for vmcs02
  KVM: nVMX: clean up nested_release_vmcs12 and code around it

 arch/x86/kvm/vmx.c | 91 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 54 insertions(+), 37 deletions(-)

-- 
1.8.3.1

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