Date: Tue, 31 Oct 2017 13:00:05 +1100 From: "Tobin C. Harding" <me@...in.cc> To: Steven Rostedt <rostedt@...dmis.org> Cc: kernel-hardening@...ts.openwall.com, "Jason A. Donenfeld" <Jason@...c4.com>, Theodore Ts'o <tytso@....edu>, Linus Torvalds <torvalds@...ux-foundation.org>, Kees Cook <keescook@...omium.org>, Paolo Bonzini <pbonzini@...hat.com>, Tycho Andersen <tycho@...ker.com>, "Roberts, William C" <william.c.roberts@...el.com>, Tejun Heo <tj@...nel.org>, Jordan Glover <Golden_Miller83@...tonmail.ch>, Greg KH <gregkh@...uxfoundation.org>, Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>, Ian Campbell <ijc@...lion.org.uk>, Sergey Senozhatsky <sergey.senozhatsky@...il.com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <wilal.deacon@....com>, Chris Fries <cfries@...gle.com>, Dave Weinstein <olorin@...gle.com>, Daniel Micay <danielmicay@...il.com>, Djalal Harouni <tixxdz@...il.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH V8 2/2] printk: hash addresses printed with %p On Mon, Oct 30, 2017 at 08:00:46PM -0400, Steven Rostedt wrote: > On Tue, 31 Oct 2017 09:41:02 +1100 > "Tobin C. Harding" <me@...in.cc> wrote: > > > > Cool. So I think we need > > > > get_random_bytes(&ptr_key, sizeof(ptr_key)); > > You'll need to add a comment here to describe what ordering the memory > barrier is used against. That is, somewhere else there's something that > needs to see the "true" after the "get_random_bytes" update. Describe > it here. Got it, thanks Tobin.
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