linux-kernel - Re: [PATCH] printk: handle blank console arguments passed in.

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: <20201007162942.GA440@jagdpanzerIV.localdomain>
Date:   Thu, 8 Oct 2020 01:29:42 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Petr Mladek <pmladek@...e.com>,
        Shreyas Joshi <shreyas.joshi@...mp.com>, rostedt@...dmis.org,
        shreyasjoshi15@...il.com, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] printk: handle blank console arguments passed in.

On (20/10/07 08:57), Guenter Roeck wrote:
> On 10/7/20 5:30 AM, Sergey Senozhatsky wrote:

[..]

> I can see to options: Link /dev/console to /dev/null if there is no console,
> or do something like
> 
> 	if (IS_ERR(file)) {
>                 pr_warn("Warning: unable to open an initial console.\n");
>                 file = filp_open("/dev/null", O_RDWR, 0);
> 		if (IS_ERR(file))
>                 	return;
>         }

As far as I can tell, /dev/null does not exist yet on this stage
(at least not in my system). But generally the idea looks interesting.

	-ss