From: Tyler Hicks <tyhicks@canonical.com>
Date: Thu, 20 Jun 2013 20:13:59 +0000 (-0700)
Subject: libceph: Fix NULL pointer dereference in auth client code
X-Git-Tag: v3.11-rc1~69^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2cb33cac622afde897aa02d3dcd9fbba8bae839e;p=pandora-kernel.git

libceph: Fix NULL pointer dereference in auth client code

A malicious monitor can craft an auth reply message that could cause a
NULL function pointer dereference in the client's kernel.

To prevent this, the auth_none protocol handler needs an empty
ceph_auth_client_ops->build_request() function.

CVE-2013-1059

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Chanam Park <chanam.park@hkpco.kr>
Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Cc: stable@vger.kernel.org
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