linux-kernel - Re: [PATCH 2/2] Revert "pstore: Honor dmesg

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Date:   Tue, 15 Aug 2017 13:55:13 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org, Nick Kralevich <nnk@...gle.com>,
        Sebastian Schmidt <yath@...h.de>,
        Tony Luck <tony.luck@...el.com>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Patrick Tjin <pattjin@...gle.com>,
        Mark Salyzyn <salyzyn@...gle.com>
Subject: Re: [PATCH 2/2] Revert "pstore: Honor dmesg_restrict sysctl on dmesg
 dumps"

On Thu 2017-08-10 13:36:35, Kees Cook wrote:
> This reverts commit 68c4a4f8abc60c9440ede9cd123d48b78325f7a3, with
> various conflict clean-ups.
> 
> With the default root directory mode set to 0750 now, the capability
> check was redundant.
> 
> Suggested-by: Nick Kralevich <nnk@...gle.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>

The patch looks correct from the code side. I looked at
it because it touched printk.c. Note that I am not
security expert.

Reviewed-by: Petr Mladek <pmladek@...e.cz>

Best Regards,
Petr