backport two fixes from 2.6.33 to quiet avc denials (#598796)

2 files changed, 691 insertions, 0 deletions

diff --git a/kernel.spec b/kernel.spec
index 6f31900..77f42a9 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -840,6 +840,8 @@ Patch14141: hid-02-fix-suspend-crash-by-moving-initializations-earlier.patch
 
 Patch14150: irda-correctly-clean-up-self-ias_obj-on-irda_bind-failure.patch
 
+Patch14200: net-do-not-check-capable-if-kernel.patch
+
 # ==============================================================================
 %endif
 
@@ -1550,6 +1552,9 @@ ApplyPatch hid-02-fix-suspend-crash-by-moving-initializations-earlier.patch
 # CVE-2010-2954
 ApplyPatch irda-correctly-clean-up-self-ias_obj-on-irda_bind-failure.patch
 
+# rhbz #598796
+ApplyPatch net-do-not-check-capable-if-kernel.patch
+
 # END OF PATCH APPLICATIONS ====================================================
 %endif
 
@@ -2202,6 +2207,10 @@ fi
 %kernel_variant_files -k vmlinux %{with_kdump} kdump
 
 %changelog
+* Mon Sep 06 2010 Kyle McMartin <kyle@redhat.com>
+- Backport two fixes from Eric Paris to resolve #598796 which avoids a
+  capability check if the request comes from the kernel.
+
 * Thu Sep 02 2010 Chuck Ebbert <cebbert@redhat.com>  2.6.32.21-167
 - irda-correctly-clean-up-self-ias_obj-on-irda_bind-failure.patch (CVE-2010-2954)
 
diff --git a/net-do-not-check-capable-if-kernel.patch b/net-do-not-check-capable-if-kernel.patch
new file mode 100644
index 0000000..0669a6c
--- /dev/null
+++ b/net-do-not-check-capable-if-kernel.patch
@@ -0,0 +1,682 @@
+commit abbee616fa69a781c6e58249318a7ae6796a3394
+Author: Eric Paris <eparis@redhat.com>
+Date:   Thu Nov 5 20:45:52 2009 -0800
+
+    net: check kern before calling security subsystem
+    
+    Before calling capable(CAP_NET_RAW) check if this operations is on behalf
+    of the kernel or on behalf of userspace.  Do not do the security check if
+    it is on behalf of the kernel.
+    
+    Signed-off-by: Eric Paris <eparis@redhat.com>
+    Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+    Signed-off-by: David S. Miller <davem@davemloft.net>
+
+commit 8b7950c0735ab6228f08e7b19fc0f94c09c7f2ba
+Author: Eric Paris <eparis@redhat.com>
+Date:   Thu Nov 5 22:18:14 2009 -0800
+
+    net: pass kern to net_proto_family create function
+    
+    The generic __sock_create function has a kern argument which allows the
+    security system to make decisions based on if a socket is being created by
+    the kernel or by userspace.  This patch passes that flag to the
+    net_proto_family specific create function, so it can do the same thing.
+    
+    Signed-off-by: Eric Paris <eparis@redhat.com>
+    Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+    Signed-off-by: David S. Miller <davem@davemloft.net>
+
+---
+ drivers/isdn/mISDN/socket.c    |    2 +-
+ drivers/net/pppox.c            |    3 ++-
+ include/linux/net.h            |    3 ++-
+ net/appletalk/ddp.c            |    3 ++-
+ net/atm/pvc.c                  |    3 ++-
+ net/atm/svc.c                  |    7 ++++---
+ net/ax25/af_ax25.c             |    3 ++-
+ net/bluetooth/af_bluetooth.c   |    5 +++--
+ net/bluetooth/bnep/sock.c      |    3 ++-
+ net/bluetooth/cmtp/sock.c      |    3 ++-
+ net/bluetooth/hci_sock.c       |    3 ++-
+ net/bluetooth/hidp/sock.c      |    3 ++-
+ net/bluetooth/l2cap.c          |    5 +++--
+ net/bluetooth/rfcomm/sock.c    |    3 ++-
+ net/bluetooth/sco.c            |    3 ++-
+ net/can/af_can.c               |    3 ++-
+ net/decnet/af_decnet.c         |    3 ++-
+ net/econet/af_econet.c         |    3 ++-
+ net/ieee802154/af_ieee802154.c |    2 +-
+ net/ipv4/af_inet.c             |    5 +++--
+ net/ipv6/af_inet6.c            |    5 +++--
+ net/ipx/af_ipx.c               |    3 ++-
+ net/irda/af_irda.c             |    7 ++++---
+ net/iucv/af_iucv.c             |    3 ++-
+ net/key/af_key.c               |    3 ++-
+ net/llc/af_llc.c               |    5 ++++-
+ net/netlink/af_netlink.c       |    3 ++-
+ net/netrom/af_netrom.c         |    3 ++-
+ net/packet/af_packet.c         |    3 ++-
+ net/phonet/af_phonet.c         |    3 ++-
+ net/rds/af_rds.c               |    3 ++-
+ net/rose/af_rose.c             |    3 ++-
+ net/rxrpc/af_rxrpc.c           |    3 ++-
+ net/socket.c                   |    2 +-
+ net/tipc/socket.c              |    6 ++++--
+ net/unix/af_unix.c             |    3 ++-
+ net/x25/af_x25.c               |    3 ++-
+ 37 files changed, 83 insertions(+), 46 deletions(-)
+
+diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
+index feb0fa4..8167346 100644
+--- a/drivers/isdn/mISDN/socket.c
++++ b/drivers/isdn/mISDN/socket.c
+@@ -779,7 +779,7 @@ base_sock_create(struct net *net, struct socket *sock, int protocol)
+ }
+ 
+ static int
+-mISDN_sock_create(struct net *net, struct socket *sock, int proto)
++mISDN_sock_create(struct net *net, struct socket *sock, int proto, int kern)
+ {
+ 	int err = -EPROTONOSUPPORT;
+ 
+diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c
+index 4f6d33f..a155baf 100644
+--- a/drivers/net/pppox.c
++++ b/drivers/net/pppox.c
+@@ -104,7 +104,8 @@ int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+ 
+ EXPORT_SYMBOL(pppox_ioctl);
+ 
+-static int pppox_create(struct net *net, struct socket *sock, int protocol)
++static int pppox_create(struct net *net, struct socket *sock, int protocol,
++			int kern)
+ {
+ 	int rc = -EPROTOTYPE;
+ 
+diff --git a/include/linux/net.h b/include/linux/net.h
+index 529a093..3a63efd 100644
+--- a/include/linux/net.h
++++ b/include/linux/net.h
+@@ -200,7 +200,8 @@ struct proto_ops {
+ 
+ struct net_proto_family {
+ 	int		family;
+-	int		(*create)(struct net *net, struct socket *sock, int protocol);
++	int		(*create)(struct net *net, struct socket *sock,
++				  int protocol, int kern);
+ 	struct module	*owner;
+ };
+ 
+diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
+index b1a4290..7c22d90 100644
+--- a/net/appletalk/ddp.c
++++ b/net/appletalk/ddp.c
+@@ -1021,7 +1021,8 @@ static struct proto ddp_proto = {
+  * Create a socket. Initialise the socket, blank the addresses
+  * set the state.
+  */
+-static int atalk_create(struct net *net, struct socket *sock, int protocol)
++static int atalk_create(struct net *net, struct socket *sock, int protocol,
++			int kern)
+ {
+ 	struct sock *sk;
+ 	int rc = -ESOCKTNOSUPPORT;
+diff --git a/net/atm/pvc.c b/net/atm/pvc.c
+index d4c0245..e879725 100644
+--- a/net/atm/pvc.c
++++ b/net/atm/pvc.c
+@@ -127,7 +127,8 @@ static const struct proto_ops pvc_proto_ops = {
+ };
+ 
+ 
+-static int pvc_create(struct net *net, struct socket *sock,int protocol)
++static int pvc_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	if (net != &init_net)
+ 		return -EAFNOSUPPORT;
+diff --git a/net/atm/svc.c b/net/atm/svc.c
+index f90d143..ed096a6 100644
+--- a/net/atm/svc.c
++++ b/net/atm/svc.c
+@@ -25,7 +25,7 @@
+ #include "signaling.h"
+ #include "addr.h"
+ 
+-static int svc_create(struct net *net, struct socket *sock,int protocol);
++static int svc_create(struct net *net, struct socket *sock, int protocol, int kern);
+ 
+ /*
+  * Note: since all this is still nicely synchronized with the signaling demon,
+@@ -330,7 +330,7 @@ static int svc_accept(struct socket *sock,struct socket *newsock,int flags)
+ 
+ 	lock_sock(sk);
+ 
+-	error = svc_create(sock_net(sk), newsock,0);
++	error = svc_create(sock_net(sk), newsock, 0, 0);
+ 	if (error)
+ 		goto out;
+ 
+@@ -650,7 +650,8 @@ static const struct proto_ops svc_proto_ops = {
+ };
+ 
+ 
+-static int svc_create(struct net *net, struct socket *sock,int protocol)
++static int svc_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	int error;
+ 
+diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
+index f454607..274d5c0 100644
+--- a/net/ax25/af_ax25.c
++++ b/net/ax25/af_ax25.c
+@@ -800,7 +800,8 @@ static struct proto ax25_proto = {
+ 	.obj_size = sizeof(struct sock),
+ };
+ 
+-static int ax25_create(struct net *net, struct socket *sock, int protocol)
++static int ax25_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	struct sock *sk;
+ 	ax25_cb *ax25;
+diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
+index 8cfb5a8..af074ed 100644
+--- a/net/bluetooth/af_bluetooth.c
++++ b/net/bluetooth/af_bluetooth.c
+@@ -126,7 +126,8 @@ int bt_sock_unregister(int proto)
+ }
+ EXPORT_SYMBOL(bt_sock_unregister);
+ 
+-static int bt_sock_create(struct net *net, struct socket *sock, int proto)
++static int bt_sock_create(struct net *net, struct socket *sock, int proto,
++			  int kern)
+ {
+ 	int err;
+ 
+@@ -144,7 +145,7 @@ static int bt_sock_create(struct net *net, struct socket *sock, int proto)
+ 	read_lock(&bt_proto_lock);
+ 
+ 	if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) {
+-		err = bt_proto[proto]->create(net, sock, proto);
++		err = bt_proto[proto]->create(net, sock, proto, kern);
+ 		bt_sock_reclassify_lock(sock, proto);
+ 		module_put(bt_proto[proto]->owner);
+ 	}
+diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
+index e857628..ee86b31 100644
+--- a/net/bluetooth/bnep/sock.c
++++ b/net/bluetooth/bnep/sock.c
+@@ -195,7 +195,8 @@ static struct proto bnep_proto = {
+ 	.obj_size	= sizeof(struct bt_sock)
+ };
+ 
+-static int bnep_sock_create(struct net *net, struct socket *sock, int protocol)
++static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
++			    int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
+index 16b0fad..536482f 100644
+--- a/net/bluetooth/cmtp/sock.c
++++ b/net/bluetooth/cmtp/sock.c
+@@ -190,7 +190,8 @@ static struct proto cmtp_proto = {
+ 	.obj_size	= sizeof(struct bt_sock)
+ };
+ 
+-static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol)
++static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol,
++			    int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
+index 75302a9..94a138f 100644
+--- a/net/bluetooth/hci_sock.c
++++ b/net/bluetooth/hci_sock.c
+@@ -621,7 +621,8 @@ static struct proto hci_sk_proto = {
+ 	.obj_size	= sizeof(struct hci_pinfo)
+ };
+ 
+-static int hci_sock_create(struct net *net, struct socket *sock, int protocol)
++static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
++			   int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
+index 37c9d7d..40fac2c 100644
+--- a/net/bluetooth/hidp/sock.c
++++ b/net/bluetooth/hidp/sock.c
+@@ -241,7 +241,8 @@ static struct proto hidp_proto = {
+ 	.obj_size	= sizeof(struct bt_sock)
+ };
+ 
+-static int hidp_sock_create(struct net *net, struct socket *sock, int protocol)
++static int hidp_sock_create(struct net *net, struct socket *sock, int protocol,
++			    int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
+index 8d1c4a9..0fdf477 100644
+--- a/net/bluetooth/l2cap.c
++++ b/net/bluetooth/l2cap.c
+@@ -819,7 +819,8 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p
+ 	return sk;
+ }
+ 
+-static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol)
++static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
++			     int kern)
+ {
+ 	struct sock *sk;
+ 
+@@ -831,7 +832,7 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol)
+ 			sock->type != SOCK_DGRAM && sock->type != SOCK_RAW)
+ 		return -ESOCKTNOSUPPORT;
+ 
+-	if (sock->type == SOCK_RAW && !capable(CAP_NET_RAW))
++	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+ 		return -EPERM;
+ 
+ 	sock->ops = &l2cap_sock_ops;
+diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
+index 30a3649..f596455 100644
+--- a/net/bluetooth/rfcomm/sock.c
++++ b/net/bluetooth/rfcomm/sock.c
+@@ -323,7 +323,8 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int
+ 	return sk;
+ }
+ 
+-static int rfcomm_sock_create(struct net *net, struct socket *sock, int protocol)
++static int rfcomm_sock_create(struct net *net, struct socket *sock,
++			      int protocol, int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
+index 5c0685e..2c06950 100644
+--- a/net/bluetooth/sco.c
++++ b/net/bluetooth/sco.c
+@@ -430,7 +430,8 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int pro
+ 	return sk;
+ }
+ 
+-static int sco_sock_create(struct net *net, struct socket *sock, int protocol)
++static int sco_sock_create(struct net *net, struct socket *sock, int protocol,
++			   int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/can/af_can.c b/net/can/af_can.c
+index 6068321..bcd546f 100644
+--- a/net/can/af_can.c
++++ b/net/can/af_can.c
+@@ -114,7 +114,8 @@ static void can_sock_destruct(struct sock *sk)
+ 	skb_queue_purge(&sk->sk_receive_queue);
+ }
+ 
+-static int can_create(struct net *net, struct socket *sock, int protocol)
++static int can_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	struct sock *sk;
+ 	struct can_proto *cp;
+diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
+index 7a58c87..5540230 100644
+--- a/net/decnet/af_decnet.c
++++ b/net/decnet/af_decnet.c
+@@ -675,7 +675,8 @@ char *dn_addr2asc(__u16 addr, char *buf)
+ 
+ 
+ 
+-static int dn_create(struct net *net, struct socket *sock, int protocol)
++static int dn_create(struct net *net, struct socket *sock, int protocol,
++		     int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
+index 0e0254f..b9d5f2f 100644
+--- a/net/econet/af_econet.c
++++ b/net/econet/af_econet.c
+@@ -605,7 +605,8 @@ static struct proto econet_proto = {
+  *	Create an Econet socket
+  */
+ 
+-static int econet_create(struct net *net, struct socket *sock, int protocol)
++static int econet_create(struct net *net, struct socket *sock, int protocol,
++			 int kern)
+ {
+ 	struct sock *sk;
+ 	struct econet_sock *eo;
+diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
+index cd949d5..40dcb54 100644
+--- a/net/ieee802154/af_ieee802154.c
++++ b/net/ieee802154/af_ieee802154.c
+@@ -234,7 +234,7 @@ static const struct proto_ops ieee802154_dgram_ops = {
+  * set the state.
+  */
+ static int ieee802154_create(struct net *net, struct socket *sock,
+-		int protocol)
++			     int protocol, int kern)
+ {
+ 	struct sock *sk;
+ 	int rc;
+diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
+index 57737b8..e718ab6 100644
+--- a/net/ipv4/af_inet.c
++++ b/net/ipv4/af_inet.c
+@@ -262,7 +262,8 @@ static inline int inet_netns_ok(struct net *net, int protocol)
+  *	Create an inet socket.
+  */
+ 
+-static int inet_create(struct net *net, struct socket *sock, int protocol)
++static int inet_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	struct sock *sk;
+ 	struct inet_protosw *answer;
+@@ -325,7 +326,7 @@ lookup_protocol:
+ 	}
+ 
+ 	err = -EPERM;
+-	if (answer->capability > 0 && !capable(answer->capability))
++	if (answer->capability > 0 && !kern && !capable(answer->capability))
+ 		goto out_rcu_unlock;
+ 
+ 	err = -EAFNOSUPPORT;
+diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
+index e127a32..10776f0 100644
+--- a/net/ipv6/af_inet6.c
++++ b/net/ipv6/af_inet6.c
+@@ -95,7 +95,8 @@ static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
+ 	return (struct ipv6_pinfo *)(((u8 *)sk) + offset);
+ }
+ 
+-static int inet6_create(struct net *net, struct socket *sock, int protocol)
++static int inet6_create(struct net *net, struct socket *sock, int protocol,
++			int kern)
+ {
+ 	struct inet_sock *inet;
+ 	struct ipv6_pinfo *np;
+@@ -158,7 +159,7 @@ lookup_protocol:
+ 	}
+ 
+ 	err = -EPERM;
+-	if (answer->capability > 0 && !capable(answer->capability))
++	if (answer->capability > 0 && !kern && !capable(answer->capability))
+ 		goto out_rcu_unlock;
+ 
+ 	sock->ops = answer->ops;
+diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
+index 66c7a20..7a7ac38 100644
+--- a/net/ipx/af_ipx.c
++++ b/net/ipx/af_ipx.c
+@@ -1352,7 +1352,8 @@ static struct proto ipx_proto = {
+ 	.obj_size = sizeof(struct ipx_sock),
+ };
+ 
+-static int ipx_create(struct net *net, struct socket *sock, int protocol)
++static int ipx_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	int rc = -ESOCKTNOSUPPORT;
+ 	struct sock *sk;
+diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
+index dd35641..ef1ac44 100644
+--- a/net/irda/af_irda.c
++++ b/net/irda/af_irda.c
+@@ -61,7 +61,7 @@
+ 
+ #include <net/irda/af_irda.h>
+ 
+-static int irda_create(struct net *net, struct socket *sock, int protocol);
++static int irda_create(struct net *net, struct socket *sock, int protocol, int kern);
+ 
+ static const struct proto_ops irda_stream_ops;
+ static const struct proto_ops irda_seqpacket_ops;
+@@ -839,7 +839,7 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
+ 
+ 	IRDA_DEBUG(2, "%s()\n", __func__);
+ 
+-	err = irda_create(sock_net(sk), newsock, sk->sk_protocol);
++	err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0);
+ 	if (err)
+ 		return err;
+ 
+@@ -1062,7 +1062,8 @@ static struct proto irda_proto = {
+  *    Create IrDA socket
+  *
+  */
+-static int irda_create(struct net *net, struct socket *sock, int protocol)
++static int irda_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	struct sock *sk;
+ 	struct irda_sock *self;
+diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
+index bada1b9..efc05e1 100644
+--- a/net/iucv/af_iucv.c
++++ b/net/iucv/af_iucv.c
+@@ -482,7 +482,8 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio)
+ }
+ 
+ /* Create an IUCV socket */
+-static int iucv_sock_create(struct net *net, struct socket *sock, int protocol)
++static int iucv_sock_create(struct net *net, struct socket *sock, int protocol,
++			    int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/key/af_key.c b/net/key/af_key.c
+index 4e98193..8c44f69 100644
+--- a/net/key/af_key.c
++++ b/net/key/af_key.c
+@@ -177,7 +177,8 @@ static struct proto key_proto = {
+ 	.obj_size = sizeof(struct pfkey_sock),
+ };
+ 
+-static int pfkey_create(struct net *net, struct socket *sock, int protocol)
++static int pfkey_create(struct net *net, struct socket *sock, int protocol,
++			int kern)
+ {
+ 	struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
+ 	struct sock *sk;
+diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
+index 7aa4fd1..6f38b8a 100644
+--- a/net/llc/af_llc.c
++++ b/net/llc/af_llc.c
+@@ -140,14 +140,17 @@ static struct proto llc_proto = {
+ 
+ /**
+  *	llc_ui_create - alloc and init a new llc_ui socket
++ *	@net: network namespace (must be default network)
+  *	@sock: Socket to initialize and attach allocated sk to.
+  *	@protocol: Unused.
++ *	@kern: on behalf of kernel or userspace
+  *
+  *	Allocate and initialize a new llc_ui socket, validate the user wants a
+  *	socket type we have available.
+  *	Returns 0 upon success, negative upon failure.
+  */
+-static int llc_ui_create(struct net *net, struct socket *sock, int protocol)
++static int llc_ui_create(struct net *net, struct socket *sock, int protocol,
++			 int kern)
+ {
+ 	struct sock *sk;
+ 	int rc = -ESOCKTNOSUPPORT;
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index 5a7dcdf..eadedb5 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -428,7 +428,8 @@ static int __netlink_create(struct net *net, struct socket *sock,
+ 	return 0;
+ }
+ 
+-static int netlink_create(struct net *net, struct socket *sock, int protocol)
++static int netlink_create(struct net *net, struct socket *sock, int protocol,
++			  int kern)
+ {
+ 	struct module *module = NULL;
+ 	struct mutex *cb_mutex;
+diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
+index 7a83495..837e10b 100644
+--- a/net/netrom/af_netrom.c
++++ b/net/netrom/af_netrom.c
+@@ -425,7 +425,8 @@ static struct proto nr_proto = {
+ 	.obj_size = sizeof(struct nr_sock),
+ };
+ 
+-static int nr_create(struct net *net, struct socket *sock, int protocol)
++static int nr_create(struct net *net, struct socket *sock, int protocol,
++		     int kern)
+ {
+ 	struct sock *sk;
+ 	struct nr_sock *nr;
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index 41866eb..e0e3f6c 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -1350,7 +1350,8 @@ static struct proto packet_proto = {
+  *	Create a packet of type SOCK_PACKET.
+  */
+ 
+-static int packet_create(struct net *net, struct socket *sock, int protocol)
++static int packet_create(struct net *net, struct socket *sock, int protocol,
++			 int kern)
+ {
+ 	struct sock *sk;
+ 	struct packet_sock *po;
+diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
+index f60c0c2..61bcae9 100644
+--- a/net/phonet/af_phonet.c
++++ b/net/phonet/af_phonet.c
+@@ -60,7 +60,8 @@ static inline void phonet_proto_put(struct phonet_protocol *pp)
+ 
+ /* protocol family functions */
+ 
+-static int pn_socket_create(struct net *net, struct socket *sock, int protocol)
++static int pn_socket_create(struct net *net, struct socket *sock, int protocol,
++			    int kern)
+ {
+ 	struct sock *sk;
+ 	struct pn_sock *pn;
+diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
+index 98e0538..ca35aad 100644
+--- a/net/rds/af_rds.c
++++ b/net/rds/af_rds.c
+@@ -407,7 +407,8 @@ static int __rds_create(struct socket *sock, struct sock *sk, int protocol)
+ 	return 0;
+ }
+ 
+-static int rds_create(struct net *net, struct socket *sock, int protocol)
++static int rds_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	struct sock *sk;
+ 
+diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
+index 502cce7..f167ed0 100644
+--- a/net/rose/af_rose.c
++++ b/net/rose/af_rose.c
+@@ -512,7 +512,8 @@ static struct proto rose_proto = {
+ 	.obj_size = sizeof(struct rose_sock),
+ };
+ 
+-static int rose_create(struct net *net, struct socket *sock, int protocol)
++static int rose_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	struct sock *sk;
+ 	struct rose_sock *rose;
+diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
+index a86afce..b37e304 100644
+--- a/net/rxrpc/af_rxrpc.c
++++ b/net/rxrpc/af_rxrpc.c
+@@ -608,7 +608,8 @@ static unsigned int rxrpc_poll(struct file *file, struct socket *sock,
+ /*
+  * create an RxRPC socket
+  */
+-static int rxrpc_create(struct net *net, struct socket *sock, int protocol)
++static int rxrpc_create(struct net *net, struct socket *sock, int protocol,
++			int kern)
+ {
+ 	struct rxrpc_sock *rx;
+ 	struct sock *sk;
+diff --git a/net/socket.c b/net/socket.c
+index 7565536..55c6e4f 100644
+--- a/net/socket.c
++++ b/net/socket.c
+@@ -1216,7 +1216,7 @@ static int __sock_create(struct net *net, int family, int type, int protocol,
+ 	/* Now protected by module ref count */
+ 	rcu_read_unlock();
+ 
+-	err = pf->create(net, sock, protocol);
++	err = pf->create(net, sock, protocol, kern);
+ 	if (err < 0)
+ 		goto out_module_put;
+ 
+diff --git a/net/tipc/socket.c b/net/tipc/socket.c
+index e6d9abf..d00c211 100644
+--- a/net/tipc/socket.c
++++ b/net/tipc/socket.c
+@@ -177,6 +177,7 @@ static void reject_rx_queue(struct sock *sk)
+  * @net: network namespace (must be default network)
+  * @sock: pre-allocated socket structure
+  * @protocol: protocol indicator (must be 0)
++ * @kern: caused by kernel or by userspace?
+  *
+  * This routine creates additional data structures used by the TIPC socket,
+  * initializes them, and links them together.
+@@ -184,7 +185,8 @@ static void reject_rx_queue(struct sock *sk)
+  * Returns 0 on success, errno otherwise
+  */
+ 
+-static int tipc_create(struct net *net, struct socket *sock, int protocol)
++static int tipc_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	const struct proto_ops *ops;
+ 	socket_state state;
+@@ -1528,7 +1530,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
+ 
+ 	buf = skb_peek(&sk->sk_receive_queue);
+ 
+-	res = tipc_create(sock_net(sock->sk), new_sock, 0);
++	res = tipc_create(sock_net(sock->sk), new_sock, 0, 0);
+ 	if (!res) {
+ 		struct sock *new_sk = new_sock->sk;
+ 		struct tipc_sock *new_tsock = tipc_sk(new_sk);
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
+index fc820cd..a1e3c85 100644
+--- a/net/unix/af_unix.c
++++ b/net/unix/af_unix.c
+@@ -621,7 +621,8 @@ out:
+ 	return sk;
+ }
+ 
+-static int unix_create(struct net *net, struct socket *sock, int protocol)
++static int unix_create(struct net *net, struct socket *sock, int protocol,
++		       int kern)
+ {
+ 	if (protocol && protocol != PF_UNIX)
+ 		return -EPROTONOSUPPORT;
+diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
+index 7fa9c7a..62c47a4 100644
+--- a/net/x25/af_x25.c
++++ b/net/x25/af_x25.c
+@@ -501,7 +501,8 @@ out:
+ 	return sk;
+ }
+ 
+-static int x25_create(struct net *net, struct socket *sock, int protocol)
++static int x25_create(struct net *net, struct socket *sock, int protocol,
++		      int kern)
+ {
+ 	struct sock *sk;
+ 	struct x25_sock *x25;