From: Michael Buesch <mb@bu3sch.de>
Date: Wed, 29 Jul 2009 09:39:03 +0000 (+0200)
Subject: USB: devio: Properly do access_ok() checks
X-Git-Tag: v2.6.27.30~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0517d13f5206dcb7c09087ee3d7e522fdc9af2e3;p=pandora-kernel.git

USB: devio: Properly do access_ok() checks

commit 18753ebc8a98efe0e8ff6167afb31cef220c8e50 upstream.

access_ok() checks must be done on every part of the userspace structure
that is accessed. If access_ok() on one part of the struct succeeded, it
does not imply it will succeed on other parts of the struct. (Does
depend on the architecture implementation of access_ok()).

This changes the __get_user() users to first check access_ok() on the
data structure.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

Reading git-diff-tree failed