linux-kernel - Re: [PATCH][RESEND] lib/vsprintf: make-printk-non-secret printks all addresses as unhashed

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Message-ID: <YBoXUxGBcG97BvML@jagdpanzerIV.localdomain>
Date:   Wed, 3 Feb 2021 12:24:03 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Timur Tabi <timur@...nel.org>
Cc:     Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        linux-kernel@...r.kernel.org, vbabka@...e.cz, linux-mm@...ck.org,
        willy@...radead.org, akpm@...ux-foundation.org,
        torvalds@...ux-foundation.org, roman.fietze@...na.com,
        keescook@...omium.org, john.ogness@...utronix.de,
        akinobu.mita@...il.com
Subject: Re: [PATCH][RESEND] lib/vsprintf: make-printk-non-secret printks all
 addresses as unhashed

On (21/02/02 15:36), Timur Tabi wrote:
> If the make-printk-non-secret command-line parameter is set, then
> printk("%p") will print addresses as unhashed.  This is useful for
> debugging purposes.
> 
> A large warning message is displayed if this option is enabled,
> because unhashed addresses, while useful for debugging, exposes
> kernel addresses which can be a security risk.
> 
> Signed-off-by: Timur Tabi <timur@...nel.org>

Looks good to me.

Acked-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

	-ss