Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 -  One nasty use-after-free bugfix, from this merge window however

 -  A less nasty use-after-free that can only zero some words at the
    beginning of the page, and hence is not really exploitable

 -  A NULL pointer dereference

 -  A dummy implementation of an AMD chicken bit MSR that Windows uses
    for some unknown reason

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs
  KVM: X86: Fix NULL deref in vcpu_scan_ioapic
  KVM: Fix UAF in nested posted interrupt processing
  KVM: fix unregistering coalesced mmio zone from wrong bus