KVM: VMX: Add non-canonical check on writes to RTIT address MSRs

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commit fe6ed369fc upstream.

Reject writes to RTIT address MSRs if the data being written is a
non-canonical address as the MSRs are subject to canonical checks, e.g.
KVM will trigger an unchecked #GP when loading the values to hardware
during pt_guest_enter().

Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Sean Christopherson 2019-12-10 15:24:32 -08:00 • committed by Greg Kroah-Hartman

parent f9fb42b463

commit 684ea466aa

1 changed files with 2 additions and 0 deletions

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arch/x86/kvm/vmx/vmx.c

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