Merge pull request #7186 from Citadel-Station-13/upstream-merge-38592

[MIRROR] [s] Fixes direct sql datum call exploit.

code/controllers/subsystem/dbcore.dm

@@ -237,6 +237,19 @@ Delayed insert mode was removed in mysql 7 and only works with MyISAM type table
 	item = list()
 	_db_query = _dm_db_new_query()
 
+/datum/DBQuery/Destroy()
+	Close()
+	SSdbcore.active_queries -= src
+	return ..()
+
+/datum/DBQuery/CanProcCall(proc_name)
+	//fuck off kevinz
+	return FALSE
+
+/datum/DBQuery/proc/Activity(activity)
+	last_activity = activity
+	last_activity_time = world.time
+
 /datum/DBQuery/proc/warn_execute()
 	. = Execute()
 	if(!.)