linux-kernel - Re: [patch] printk: add KERN

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]

Date:	Tue, 2 Oct 2007 18:07:01 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Joe Perches <joe@...ches.com>
cc:	Ingo Molnar <mingo@...e.hu>, Willy Tarreau <w@....eu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>, linux-kernel@...r.kernel.org
Subject: Re: [patch] printk: add KERN_CONT annotation

On Oct 2 2007 09:03, Joe Perches wrote:
>On Tue, 2007-10-02 at 17:45 +0200, Jan Engelhardt wrote:
>> always use printk("%s", var)
>
>You have to use indirect arguments to log something?

No, you do not have to.

>Don't you think that's a stupid rule?

Not at all. var may contain format specifiers, which poses a
certain security issue into people's hands. This is already
important in userspace, so is probably even more in the kernel,
even though user-supplied strings are less common.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/