ieee802154: enforce CAP_NET_RAW for raw sockets

commit e69dbd4619e7674c1679cba49afd9dd9ac347eef upstream.

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

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
index 351d9a94ec2faa429612d6b7da26b09b63e49a25..bc262a3f46ba5fb0f633dc43b229aab064c7681d 100644 (file)
--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -255,6 +255,9 @@ static int ieee802154_create(struct net *net, struct socket *sock,
 
        switch (sock->type) {
        case SOCK_RAW:
+               rc = -EPERM;
+               if (!capable(CAP_NET_RAW))
+                       goto out;
                proto = &ieee802154_raw_prot;
                ops = &ieee802154_raw_ops;
                break;