Index: sys/cam/cam_xpt.c
===================================================================
--- sys/cam/cam_xpt.c
+++ sys/cam/cam_xpt.c
@@ -4523,7 +4523,7 @@
 {
 	union ccb *new_ccb;

-	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_NOWAIT);
+	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_ZERO|M_NOWAIT);
 	if (new_ccb == NULL)
 		return (NULL);
 	periph->periph_allocated++;
@@ -4537,7 +4537,7 @@
 	union ccb *new_ccb;

 	cam_periph_unlock(periph);
-	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_WAITOK);
+	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_ZERO|M_WAITOK);
 	cam_periph_lock(periph);
 	periph->periph_allocated++;
 	cam_ccbq_take_opening(&periph->path->device->ccbq);