diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index d037adb295ac5..86b8aaf91baa6 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2772,6 +2772,12 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
 			/* want to reconstruct this device */
 			rb2 = r10_bio;
 			sect = raid10_find_virt(conf, sector_nr, i);
+			if (sect >= mddev->resync_max_sectors) {
+				/* last stripe is not complete - don't
+				 * try to recover this sector.
+				 */
+				continue;
+			}
 			/* Unless we are doing a full sync, or a replacement
 			 * we only need to recover the block if it is set in
 			 * the bitmap