Add comment to explain hang_emerge

2022-05-11 20:58:37 +02:00 · 2022-05-11 20:58:37 +02:00 · 217af233a7
parent 9b54717da4
commit 217af233a7
1 changed files with 4 additions and 0 deletions
--- a/hang_emerge/init.lua
+++ b/hang_emerge/init.lua
@ -1,3 +1,7 @@
+-- Calling minetest.emerge_area() with an out-of-bounds position like
+-- below makes Minetest 5.5 hang and waste CPU and RAM resources; any
+-- attacker could use it to hang a server. Note that x=32766 is safe.
+
 local emerge = function()
 	local i = 32767
 	minetest.emerge_area(