NKX-bit

Posted Jul 22, 2009 23:37 UTC (Wed) by i3839 (guest, #31386)
In reply to: Yes, you are overly naive... by ajb
Parent article: Fun with NULL pointers, part 2

Seems like the execute (and perhaps some other) memory permissions should be split up into user and kernel versions, that would solve this particular problem at least. That said, if they just got used to a separate no-execute bit, it may take a really long time before they introduce a no-kernel-execute bit (or ring0, whatever).