diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index faadc449cca5..da397779a6d4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1074,6 +1074,24 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 
 	src_page = pmd_page(pmd);
 	VM_BUG_ON_PAGE(!PageHead(src_page), src_page);
+
+	/*
+	 * If this page is a potentially pinned page, split and retry the fault
+	 * with smaller page size.  Normally this should not happen because the
+	 * userspace should use MADV_DONTFORK upon pinned regions.  This is a
+	 * best effort that the pinned pages won't be replaced by another
+	 * random page during the coming copy-on-write.
+	 */
+	if (unlikely(is_cow_mapping(vma->vm_flags) &&
+		     atomic_read(&src_mm->has_pinned) &&
+		     page_maybe_dma_pinned(src_page))) {
+		pte_free(dst_mm, pgtable);
+		spin_unlock(src_ptl);
+		spin_unlock(dst_ptl);
+		__split_huge_pmd(vma, src_pmd, addr, false, NULL);
+		return -EAGAIN;
+	}
+
 	get_page(src_page);
 	page_dup_rmap(src_page, true);
 	add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
@@ -1177,6 +1195,16 @@ int copy_huge_pud(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 		/* No huge zero pud yet */
 	}
 
+	/* Please refer to comments in copy_huge_pmd() */
+	if (unlikely(is_cow_mapping(vma->vm_flags) &&
+		     atomic_read(&src_mm->has_pinned) &&
+		     page_maybe_dma_pinned(pud_page(pud)))) {
+		spin_unlock(src_ptl);
+		spin_unlock(dst_ptl);
+		__split_huge_pud(vma, src_pud, addr);
+		return -EAGAIN;
+	}
+
 	pudp_set_wrprotect(src_mm, addr, src_pud);
 	pud = pud_mkold(pud_wrprotect(pud));
 	set_pud_at(dst_mm, addr, dst_pud, pud);