diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index ca04766edbd4..8af8c8f88bd7 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3807,6 +3807,14 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
 	struct kvm_memory_slot *slot;
 	bool async;
 
+	/*
+	 * Don't expose private memslots to L2.
+	 */
+	if (is_guest_mode(vcpu) && !kvm_is_visible_gfn(vcpu->kvm, gfn)) {
+		*pfn = KVM_PFN_NOSLOT;
+		return false;
+	}
+
 	slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
 	async = false;
 	*pfn = __gfn_to_pfn_memslot(slot, gfn, false, &async, write, writable);