[34/46] uvesafb/connector: Disallow unpliviged users to send netlink packets

[Greg KH]

2.6.31-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Philipp Reisner <philipp.reisner@xxxxxxxxxx>

(cherry picked from commit 30efa3f76813b17445bc5a2e443ae9731518566b)

Signed-off-by: Philipp Reisner <philipp.reisner@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/video/uvesafb.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -72,6 +72,9 @@ static void uvesafb_cn_callback(struct c
 	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;
 


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