linux-kernel - [PATCH 8/8] uvesafb/connector: Disallow unpliviged users to send netlink packets

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Message-Id: <1254487211-11810-9-git-send-email-philipp.reisner@linbit.com>
Date:	Fri,  2 Oct 2009 14:40:11 +0200
From:	Philipp Reisner <philipp.reisner@...bit.com>
To:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>, Greg KH <greg@...ah.com>
Cc:	dm-devel@...hat.com, Evgeniy Polyakov <zbr@...emap.net>,
	linux-fbdev-devel@...ts.sourceforge.net,
	Philipp Reisner <philipp.reisner@...bit.com>
Subject: [PATCH 8/8] uvesafb/connector: Disallow unpliviged users to send netlink packets

Signed-off-by: Philipp Reisner <philipp.reisner@...bit.com>
---
 drivers/video/uvesafb.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index aa7cd95..e35232a 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -72,6 +72,9 @@ static void uvesafb_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *ns
 	struct uvesafb_task *utask;
 	struct uvesafb_ktask *task;
 
+	if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN))
+		return;
+
 	if (msg->seq >= UVESAFB_TASKS_MAX)
 		return;
 
-- 
1.6.0.4

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