KVM: x86: MMU: fix ubsan index-out-of-range warning

[cascardo/linux.git] / arch / x86 / kvm / paging_tmpl.h

diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 6c9fed9..2ce4f05 100644 (file)
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -249,7 +249,7 @@ static int FNAME(update_accessed_dirty_bits)(struct kvm_vcpu *vcpu,
                        return ret;
 
                kvm_vcpu_mark_page_dirty(vcpu, table_gfn);
-               walker->ptes[level] = pte;
+               walker->ptes[level - 1] = pte;
        }
        return 0;
 }