1 files changed, 7 insertions, 1 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ffbb2c818d78..2bad49b535c8 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3993,7 +3993,13 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 
         vcpu->arch.cr2 = sregs->cr2;
         mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3;
-        vcpu->arch.cr3 = sregs->cr3;
+
+        down_read(&vcpu->kvm->slots_lock);
+        if (gfn_to_memslot(vcpu->kvm, sregs->cr3 >> PAGE_SHIFT))
+                vcpu->arch.cr3 = sregs->cr3;
+        else
+                set_bit(KVM_REQ_TRIPLE_FAULT, &vcpu->requests);
+        up_read(&vcpu->kvm->slots_lock);
 
         kvm_set_cr8(vcpu, sregs->cr8);