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From: Greg KH <gregkh@suse.de>
To: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	James Morris <jmorris@namei.org>,
	Namhyung Kim <namhyung@gmail.com>,
	kernel-hardening@lists.openwall.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] kernel: escape non-ASCII and control characters in printk()
Date: Sat, 2 Jul 2011 08:08:01 -0700	[thread overview]
Message-ID: <20110702150801.GA14453@suse.de> (raw)
In-Reply-To: <20110702081022.GA2755@albatros>

On Sat, Jul 02, 2011 at 12:10:22PM +0400, Vasiliy Kulikov wrote:
> Greg - do you know any devices supplying multibyte strings, but not in
> UTF-8 encoding?  If yes, then CSI filtering is a bad idea :\

USB is "supposed" to have UTF-16 strings, but there's devices out there
that have crazy stuff in them.  And of course, anyone can put anything
in the device string if they know how to write a bit of firmware, so we
have to watch out for that.  Hopefully we handle that properly in the
usb_string() function in the kernel but review of it is always nice to
have.

Other than that, I don't know of any multi-byte strings in devices at
the moment.  I haven't seen the Thunderbolt specs though, so who knows
what is coming next.

Hope this helps,

greg k-h

  reply	other threads:[~2011-07-02 15:16 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-23 15:21 [PATCH v2] kernel: escape non-ASCII and control characters in printk() Vasiliy Kulikov
2011-06-26 10:39 ` Ingo Molnar
2011-06-26 16:54   ` Vasiliy Kulikov
2011-06-26 18:26     ` Ingo Molnar
2011-06-26 19:06       ` Vasiliy Kulikov
2011-06-26 19:46         ` Ingo Molnar
2011-06-26 20:25           ` Vasiliy Kulikov
2011-06-26 22:01             ` Ingo Molnar
2011-06-27  8:36               ` Vasiliy Kulikov
2011-06-27  9:20                 ` Vasiliy Kulikov
2011-06-27  9:40                 ` Alan Cox
2011-06-27 18:38                   ` Vasiliy Kulikov
2011-06-28 19:30                     ` Linus Torvalds
2011-07-01 12:00                       ` Ingo Molnar
2011-07-01 12:54                         ` [kernel-hardening] " Vasiliy Kulikov
2011-07-01 14:20                           ` Alan Cox
2011-07-02 16:42                             ` Solar Designer
2011-07-02 19:33                               ` Alan Cox
2011-07-02 20:34                                 ` Linus Torvalds
2011-07-01 14:37                       ` Vasiliy Kulikov
2011-07-01 14:49                         ` Alan Cox
2011-07-02  8:10                           ` Vasiliy Kulikov
2011-07-02 15:08                             ` Greg KH [this message]
2011-07-03 10:01                           ` Vasiliy Kulikov
2011-07-03 11:42                             ` Vasiliy Kulikov
2011-07-03 12:23                             ` Alan Cox
2011-07-03 17:42                             ` Linus Torvalds
2011-07-03 21:10                               ` Alan Cox
2011-07-03 21:34                                 ` Linus Torvalds
2011-07-05 17:49                               ` [kernel-hardening] " Vasiliy Kulikov
2011-07-01 12:12                 ` Ingo Molnar

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