fixed ghxx exploit

Src/Hyperion-kernel/lib/modules/Hyperion/13_keventd.kmod

@@ -1,6 +1,7 @@
 --:Minify:--
 local kernel = ...
 
+local timeout=false
 kernel.processes.keventd = function()
     while true do
         local event = {kernel.computer:getMachineEvent()}
@@ -13,6 +14,12 @@ kernel.processes.keventd = function()
                 end
             end
             kernel.io.pushEvent("raw", table.unpack(event))
+            timeout=false
+        else
+            timeout=true
+        end
+        if timeout then
+            sleep(.05)
         end
     end
 end

Src/Hyperion-kernel/lib/modules/Hyperion/30_userspace.kmod

@@ -2,17 +2,28 @@
 local args={...}
 local kernel=args[1]
 kernel._G=_G
-kernel._U=setmetatable({},{
-    __index = kernel._G,
-    __newindex = function(t,k,v)
-        if kernel.config.allowGlobalOverwrites or kernel.allowGlobalOverwrites then
-            rawset(t,k,v)
-            return
-        end
-        error("Attempt to modify global variable '"..k.."'",2)
-    end,
-    __metatable = false
-})
+
+local function fixstupidghxxexploit(tbl)
+    return setmetatable({},{
+        __index = function(t,k)
+            if type(tbl[k])=="table" then
+                return fixstupidghxxexploit(tbl[k])
+            else
+                return tbl[k]
+            end
+        end,
+        __newindex = function(t,k,v)
+            if kernel.config.allowGlobalOverwrites or kernel.allowGlobalOverwrites then
+                rawset(tbl,k,v)
+                return
+            end
+            error("Attempt to modify global variable '"..k.."'",2)
+        end,
+        __metatable = false
+    })
+end
+
+kernel._U=fixstupidghxxexploit(kernel._G)
 kernel.allowGlobalOverwrites=true
 kernel._U._G=kernel._U
 kernel.allowGlobalOverwrites=false

Src/Hyperion-kernel/lib/modules/Hyperion/45_hypervisor.kmod

@@ -39,7 +39,7 @@ function sys.spawn(func, name, envars, args, tgid)
         status="R",
         pid=id,
         tgid=tgid or kernel.currentTask.tgid,
-        user=kernel.user,
+        username=kernel.username,
         uid=kernel.uid,
         fd={},
         exit="",
@@ -86,7 +86,7 @@ function sys.getTask(pid)
             status=task.status,
             pid=task.pid,
             tgid=task.tgid,
-            user=task.user,
+            username=task.username,
             uid=task.uid,
             exit=task.exit,
             sleep=task.sleep,
@@ -302,7 +302,7 @@ function kernel.main()
             end
             if task.status == "R" then
                 kernel.currentTask = task
-                kernel.user = task.user
+                kernel.username = task.username
                 kernel.uid = task.uid
                 kernel.process = task.name
                 N = N + 1
@@ -331,14 +331,14 @@ function kernel.main()
                 if elapsed >= Tmax then Tmax_hit = Tmax_hit + 1 end
 
                 -- handle task results
-                if ret[1] == "error" then
+                if ret[1] == "error" or ret[1]==false then
                     kernel.log("processHandlerException: "..ret[2], "ERROR", 2)
                     task.status = "Z"
                     task.exit = "processHandlerException: "..ret[2]
                 elseif ret[1] == "timeout" then
                     task.ivs=task.ivs+1
                     task.syscallReturn = {}
-                elseif ret[1] == "success" then
+                elseif ret[1] == "success" or ret[1] == true then
                     task.vs=task.vs+1
                     if ret[2]=="syscall" then
                         if kernel.syscalls[ret[3]] then

Src/Hyperion-kernel/lib/modules/Hyperion/90_init.kmod

@@ -25,7 +25,7 @@ kernel.tasks["1"] = {
     status="R",
     pid=1,
     tgid=1,
-    user="root",
+    username="root",
     uid=0,
     fd={},
     envars={},