Patch the AsyncSyscall v4 exploit from working

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

@@ -55,3 +55,18 @@ local origLoad = load
 kernel._U = readonly(kernel._G)
 kernel._U._G = kernel._U
 kernel._U.load = function(a,b,c,d) return origLoad(a,b,c,d or kernel._U) end
+
+function kernel.freshUserEnv()
+    local locals = {}
+    locals.syscall = _makeSyscallProxy()
+
+    local env = setmetatable(locals, {
+        __index    = kernel._U,
+        __newindex = function(_, k, v) rawset(locals, k, v) end,
+    })
+
+    locals._G   = env
+    locals.load = function(a, b, c, d) return origLoad(a, b, c, d or env) end
+
+    return env
+end