diff --git a/kernel/fork.c b/kernel/fork.c
index d2a967bf85d5e..d3a5915d3cfe5 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -553,10 +553,12 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
 		if (retval)
 			goto fail_nomem_anon_vma_fork;
 		if (tmp->vm_flags & VM_WIPEONFORK) {
-			/* VM_WIPEONFORK gets a clean slate in the child. */
+			/*
+			 * VM_WIPEONFORK gets a clean slate in the child.
+			 * Don't prepare anon_vma until fault since we don't
+			 * copy page for current vma.
+			 */
 			tmp->anon_vma = NULL;
-			if (anon_vma_prepare(tmp))
-				goto fail_nomem_anon_vma_fork;
 		} else if (anon_vma_fork(tmp, mpnt))
 			goto fail_nomem_anon_vma_fork;
 		tmp->vm_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);