[PATCH 3.16 20/25] ieee802154: enforce CAP_NET_RAW for raw sockets

[Ben Hutchings]

3.16.77-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Ori Nimron <orinimron123@xxxxxxxxx>

commit e69dbd4619e7674c1679cba49afd9dd9ac347eef upstream.

When creating a raw AF_IEEE802154 socket, CAP_NET_RAW needs to be
checked first.

Signed-off-by: Ori Nimron <orinimron123@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Acked-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 net/ieee802154/af_ieee802154.c | 3 +++
 1 file changed, 3 insertions(+)

--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -255,6 +255,9 @@ static int ieee802154_create(struct net
 
 	switch (sock->type) {
 	case SOCK_RAW:
+		rc = -EPERM;
+		if (!capable(CAP_NET_RAW))
+			goto out;
 		proto = &ieee802154_raw_prot;
 		ops = &ieee802154_raw_ops;
 		break;