From: John Johansen <john.johansen@canonical.com>
Date: Fri, 22 Jul 2011 15:14:15 +0000 (-0700)
Subject: Ecryptfs: Add mount option to check uid of device being mounted = expect uid
X-Git-Tag: v3.1-rc2~31^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=764355487ea220fdc2faf128d577d7f679b91f97;p=pandora-kernel.git

Ecryptfs: Add mount option to check uid of device being mounted = expect uid

Close a TOCTOU race for mounts done via ecryptfs-mount-private.  The mount
source (device) can be raced when the ownership test is done in userspace.
Provide Ecryptfs a means to force the uid check at mount time.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Cc: <stable@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---

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