linux-kernel - Re: [PATCH v6 07/11] printk: Constrain hardware-addressed console checks to name position

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: <ZzTPt6mEhiBNncH-@pathway.suse.cz>
Date: Wed, 13 Nov 2024 17:11:35 +0100
From: Petr Mladek <pmladek@...e.com>
To: Chris Down <chris@...isdown.name>
Cc: linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	John Ogness <john.ogness@...utronix.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Tony Lindgren <tony.lindgren@...ux.intel.com>, kernel-team@...com
Subject: Re: [PATCH v6 07/11] printk: Constrain hardware-addressed console
 checks to name position

On Mon 2024-10-28 16:45:48, Chris Down wrote:
> Commit 7640f1a44eba ("printk: Add
> match_devname_and_update_preferred_console()") adds support for
> DEVNAME:n:n style console= registration. It determines whether or not
> this is a hardware-addressed console by looking at whether the console=
> string has a colon in it. However, this interferes with loglevel:n and
> potentially other future named options, which also make use of the
> character.
> 
> In order to avoid this, only search positions before options.
> 
> Signed-off-by: Chris Down <chris@...isdown.name>

Nice trick!

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

Best Regards,
Petr