diff --git a/mm/shmem.c b/mm/shmem.c
index e1b7cf4b5280..02de6326ef3b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2552,6 +2552,8 @@ static int shmem_swapin_folio(struct inode *inode, pgoff_t index,
 			else
 				error = -ENOMEM;
 			folio = NULL;
+			/* Make sure to validate the original value. */
+			swap = index_entry;
 			goto failed;
 		}
 		if (fault_type) {