From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
Subject: Re: efivarfs allows non-canonical GUID and duplicate filenames
Date: Tue, 29 Jan 2013 04:44:18 +0000
Message-ID: <20130129044418.GD14395@srcf.ucam.org>
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To: Lingzhu Xiang <lxiang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Matt Fleming <matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Matthew Garrett <mjg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Jeremy Kerr <jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Andy Whitcroft <apw-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Jan Beulich <JBeulich-IBi9RG/b67k@public.gmane.org>, Chun-Yi Lee <joeyli.kernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
List-Id: linux-efi@vger.kernel.org

On Fri, Jan 25, 2013 at 03:01:43PM +0800, Lingzhu Xiang wrote:

> efivarfs_hex_to_guid does not check filename validity. 

Yeah, that's a problem.

> [root@qemu-ovmf efivars]# touch BootOrder-8BE4DF61-93CA-11D2-AA0D-00E098032B8C

Ha ok. Other than the change in name over unmount, does this one cause 
any problems?

-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org