On Fri, Dec 18, 2015 at 1:04 PM, Linus Torvalds <torva...@linux-foundation.org> wrote: > > I do wonder if you need an explicit value, though. I think it's > reasonable to say that PKRU value 0 is special. It's what we'd start > processes with, and why not just say that it's what we run signal > handlers in? > > Would any other value ever make sense, really?
Ahh. Your point about the PROT_EXEC handling means that maybe we don't want to default to zero. Maybe we want to make the default PKRU startup value be 1 instead, enabling access disable key for key 0? Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/