Index: head/sys/compat/linux/linux.h
===================================================================
--- head/sys/compat/linux/linux.h
+++ head/sys/compat/linux/linux.h
@@ -58,6 +58,10 @@
 #define	LINUX_AF_IPX		4
 #define	LINUX_AF_APPLETALK	5
 #define	LINUX_AF_INET6		10
+#define	LINUX_AF_NETLINK	16
+
+#define	LINUX_NETLINK_ROUTE	0
+#define	LINUX_NETLINK_UEVENT	15
 
 /*
  * net device flags
Index: head/sys/compat/linux/linux_socket.c
===================================================================
--- head/sys/compat/linux/linux_socket.c
+++ head/sys/compat/linux/linux_socket.c
@@ -514,6 +514,20 @@
 		return (retval_socket);
 	domain = linux_to_bsd_domain(args->domain);
 	if (domain == -1) {
+		if (args->domain == LINUX_AF_NETLINK &&
+		    args->protocol == LINUX_NETLINK_ROUTE) {
+			linux_msg(curthread,
+			    "unsupported socket(AF_NETLINK, %d, NETLINK_ROUTE)", type);
+			return (EAFNOSUPPORT);
+		}
+		    
+		if (args->domain == LINUX_AF_NETLINK &&
+		    args->protocol == LINUX_NETLINK_UEVENT) {
+			linux_msg(curthread,
+			    "unsupported socket(AF_NETLINK, %d, NETLINK_UEVENT)", type);
+			return (EAFNOSUPPORT);
+		}
+	
 		linux_msg(curthread, "unsupported socket domain %d, type %d, protocol %d",
 		    args->domain, args->type & LINUX_SOCK_TYPE_MASK, args->protocol);
 		return (EAFNOSUPPORT);