From: Kees Cook <keescook@chromium.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Timur Tabi <timur@kernel.org>, Petr Mladek <pmladek@suse.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
Matthew Wilcox <willy@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
roman.fietze@magna.com, John Ogness <john.ogness@linutronix.de>,
Akinobu Mita <akinobu.mita@gmail.com>
Subject: Re: [PATCH] lib/vsprintf: make-printk-non-secret printks all addresses as unhashed
Date: Wed, 3 Feb 2021 10:53:17 -0800 [thread overview]
Message-ID: <202102031052.36869CC@keescook> (raw)
In-Reply-To: <CAHk-=wgaK4cz=K-JB4p-KPXBV73m9bja2w1W1Lr3iu8+NEPk7A@mail.gmail.com>
On Tue, Feb 02, 2021 at 02:51:00PM -0800, Linus Torvalds wrote:
> On Tue, Feb 2, 2021 at 2:34 PM Steven Rostedt <rostedt@goodmis.org> wrote:
> >
> > "I also suspect that everybody has already accepted that KASLR isn't
> > really working locally anyway (due to all the hw leak models with
> > cache and TLB timing), so anybody who can look at kernel messages
> > already probably could figure most of those things out."
>
> Honestly, if you have to pass a kernel command line, and there's a big
> notice in the kernel messages about this, I no longer care.
Okay, cool; it's fine by me too. I prefer this kind of "boot into debug
mode" switch to having lots of %px scattered around in questionable
places. :)
I will update the %p deprecation docs.
--
Kees Cook
next prev parent reply other threads:[~2021-02-03 18:54 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-02 20:18 [PATCH] lib/vsprintf: make-printk-non-secret printks all addresses as unhashed Timur Tabi
2021-02-02 21:52 ` Kees Cook
2021-02-02 22:19 ` Timur Tabi
2021-02-02 22:34 ` Steven Rostedt
2021-02-02 22:51 ` Linus Torvalds
2021-02-03 18:53 ` Kees Cook [this message]
2021-02-04 20:48 ` Pavel Machek
2021-02-04 20:54 ` Steven Rostedt
2021-02-04 21:49 ` Pavel Machek
2021-02-04 21:59 ` Timur Tabi
2021-02-04 22:06 ` Steven Rostedt
2021-02-04 22:11 ` Pavel Machek
2021-02-04 22:17 ` Kees Cook
2021-02-04 22:20 ` Timur Tabi
2021-02-04 22:51 ` Pavel Machek
2021-02-04 22:57 ` Pavel Machek
2021-02-04 22:05 ` Steven Rostedt
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