[PATCH 7/7] uvesafb/connector: Disallow unpliviged users to send netlink packets

[Philipp Reisner]

Signed-off-by: Philipp Reisner <philipp.reisner@xxxxxxxxxx>
(cherry picked from commit 30efa3f76813b17445bc5a2e443ae9731518566b)
---
 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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