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Date: Mon, 27 Nov 2017 16:46:35 -0800
From: Kees Cook <keescook@...omium.org>
To: "Tobin C. Harding" <me@...in.cc>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>, "Jason A. Donenfeld" <Jason@...c4.com>,
"Theodore Ts'o" <tytso@....edu>, Paolo Bonzini <pbonzini@...hat.com>, Tycho Andersen <tycho@...ho.ws>,
"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>, Steven Rostedt <rostedt@...dmis.org>,
Chris Fries <cfries@...gle.com>, Dave Weinstein <olorin@...gle.com>,
Daniel Micay <danielmicay@...il.com>, Djalal Harouni <tixxdz@...il.com>,
Radim Krčmář <rkrcmar@...hat.com>,
LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH 1/5] docs: correct documentation for %pK
On Mon, Nov 27, 2017 at 3:40 PM, Tobin C. Harding <me@...in.cc> wrote:
> Current documentation indicates that %pK prints a leading '0x'. This is
> not the case.
>
> Correct documentation for printk specifier %pK.
Yup, quite true. :)
Acked-by: Kees Cook <keescook@...omium.org>
-Kees
>
> Signed-off-by: Tobin C. Harding <me@...in.cc>
> ---
> Documentation/printk-formats.txt | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 361789df51ec..b4fe3c5f3b44 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -91,7 +91,7 @@ Kernel Pointers
>
> ::
>
> - %pK 0x01234567 or 0x0123456789abcdef
> + %pK 01234567 or 0123456789abcdef
>
> For printing kernel pointers which should be hidden from unprivileged
> users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see
> --
> 2.7.4
>
--
Kees Cook
Pixel Security
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