From: Kees Cook <keescook@chromium.org>
Date: Mon, 25 Feb 2013 21:32:25 +0000 (+0000)
Subject: proc connector: reject unprivileged listener bumps
X-Git-Tag: v3.9-rc2~24^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e70ab977991964a5a7ad1182799451d067e62669;p=pandora-kernel.git

proc connector: reject unprivileged listener bumps

While PROC_CN_MCAST_LISTEN/IGNORE is entirely advisory, it was possible
for an unprivileged user to turn off notifications for all listeners by
sending PROC_CN_MCAST_IGNORE. Instead, require the same privileges as
required for a multicast bind.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: stable@vger.kernel.org
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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