linux-kernel - Re: [PATCH v4 3/3] printk: check CON_ENABLED in have_callable

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: <20160216154450.GA542@swordfish>
Date:	Wed, 17 Feb 2016 00:44:50 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Petr Mladek <pmladek@...e.com>
Cc:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jan Kara <jack@...e.com>, Tejun Heo <tj@...nel.org>,
	Kyle McMartin <kyle@...nel.org>,
	Dave Jones <davej@...emonkey.org.uk>,
	Calvin Owens <calvinowens@...com>,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCH v4 3/3] printk: check CON_ENABLED in
 have_callable_console()

On (02/16/16 15:44), Petr Mladek wrote:
> On Sat 2016-02-13 03:37:12, Sergey Senozhatsky wrote:
> > have_callable_console() must also test CON_ENABLED bit, not just
> > CON_ANYTIME. We may have disabled CON_ANYTIME console so printk
> > can wrongly assume that it's safe to call_console_drivers().
> > 
> > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
> 
> Makes perfect sense.
> 
> Reviewed-by: Petr Mladek <pmladek@...e.com>

thanks.

	-ss