ax25: enforce CAP_NET_RAW for raw sockets

[ Upstream commit 0614e2b73768b502fc32a75349823356d98aae2c ]

When creating a raw AF_AX25 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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

net/ax25/af_ax25.c

@@ -858,6 +858,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
 		break;
 
 	case SOCK_RAW:
+		if (!capable(CAP_NET_RAW))
+			return -EPERM;
 		break;
 	default:
 		return -ESOCKTNOSUPPORT;