diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 93a12cc107c9..aae19c29bcfa 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -55,6 +55,8 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
 			/* don't free the page */
 			goto out;
 		}
+
+		flush_dcache_page(page);
 	} else {
 		page = *pagep;
 		*pagep = NULL;
@@ -574,6 +576,7 @@ retry:
 				err = -EFAULT;
 				goto out;
 			}
+			flush_dcache_page(page);
 			goto retry;
 		} else
 			BUG_ON(page);