diff --git a/mm/memory.c b/mm/memory.c
index cc50fa0f4590..cbc0a163d705 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -823,6 +823,17 @@ copy_present_page(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma
 	if (likely(!page_maybe_dma_pinned(page)))
 		return 1;
 
+	/*
+	 * The vma->anon_vma of the child process may be NULL
+	 * because the entire vma does not contain anonymous pages.
+	 * A BUG will occur when the copy_present_page() passes
+	 * a copy of a non-anonymous page of that vma to the
+	 * page_add_new_anon_rmap() to set up new anonymous rmap.
+	 * Return 1 if the page is not an anonymous page.
+	 */
+	if (!PageAnon(page))
+		return 1;
+
 	new_page = *prealloc;
 	if (!new_page)
 		return -EAGAIN;