linux-kernel - Re: [PATCH v3 2/3] doc: update kpt

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <064efc24-fff2-0a3b-b7af-b64d53400fc0@infradead.org>
Date:   Mon, 18 Dec 2017 15:50:06 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     "Tobin C. Harding" <me@...in.cc>, Jonathan Corbet <corbet@....net>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>,
        Alexander Popov <alex.popov@...ux.com>,
        Joe Perches <joe@...ches.com>,
        kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v3 2/3] doc: update kpt_restrict documentation

On 12/18/2017 02:29 PM, Tobin C. Harding wrote:
> Recently the behaviour of printk specifier %pK was changed. The
> documentation does not currently mirror this.
> 
> Update documentation for sysctl kpt_restrict.

Fix subject and here ............ ^^^^^^^^^^^^.

> 
> Signed-off-by: Tobin C. Harding <me@...in.cc>
> ---
>  Documentation/sysctl/kernel.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
> index 63663039acb7..412314eebda6 100644
> --- a/Documentation/sysctl/kernel.txt
> +++ b/Documentation/sysctl/kernel.txt
> @@ -391,7 +391,8 @@ kptr_restrict:
>  This toggle indicates whether restrictions are placed on
>  exposing kernel addresses via /proc and other interfaces.
>  
> -When kptr_restrict is set to (0), the default, there are no restrictions.
> +When kptr_restrict is set to 0 (the default) the address is hashed before
> +printing. (This is the equivalent to %p.)
>  
>  When kptr_restrict is set to (1), kernel pointers printed using the %pK
>  format specifier will be replaced with 0's unless the user has CAP_SYSLOG
> 


-- 
~Randy