diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index a0a818ccc92e..5bfdb30b9088 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1286,7 +1286,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 	case ISCSI_OP_SCSI_TMFUNC_RSP:
 	case ISCSI_OP_NOOP_IN:
 		task = iscsi_itt_to_task(conn, hdr->itt);
-		if (!task)
+		if (!task || task->state == ISCSI_TASK_FREE || task->sc)
 			return ISCSI_ERR_BAD_ITT;
 		break;
 	default: