On Fri, May 17, 2019 at 04:14:03PM +0000, David Laight wrote: > From: Kees Cook > > Sent: 17 May 2019 16:54 > ... > > > I've changed some of our code to use __get_user() to avoid > > > these stupid overheads. > > > > __get_user() skips even access_ok() checking too, so that doesn't seem > > like a good idea. Did you run access_ok() checks separately? (This > > generally isn't recommended.) > > Of course, I'm not THAT stupid :-) Right, yes, I know. :) I just wanted to double-check since accidents can happen. The number of underscores on these function is not really a great way to indicate what they're doing. ;) -- Kees Cook