Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "Mostly fixing some light fallout from the changes that went into the
  merge window.

   1) Fix memory leaks on network namespace teardown in netfilter, from
      Liping Zhang.

   2) When comparing ipv6 nexthops, we have to take the lightweight
      tunnel state into account as well. From David Ahern.

   3) Fix socket option object length check in the new TLS code, from
      Matthias Rosenfelder.

   4) Fix memory leak in nfp driver flower support, from Jakub Kicinski.

   5) Several netlink attribute validation fixes in cfg80211, from
      Srinivas Dasari.

   6) Fix context array leak in virtio_net, from Jason Wang.

   7) SKB use after free in hns driver, from Yusheng Lin.

   8) Fix socket leak on accept() in RDS, from Sowmini Varadhan. Also
      add a WARN_ON() to sock_graft() so other protocol stacks don't
      trip over this as well"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
  net: ethernet: mediatek: remove useless code in mtk_probe()
  mpls: fix uninitialized in_label var warning in mpls_getroute
  doc: SKB_GSO_[IPIP|SIT] have been replaced
  bonding: avoid NETDEV_CHANGEMTU event when unregistering slave
  net/sock: add WARN_ON(parent->sk) in sock_graft()
  rds: tcp: use sock_create_lite() to create the accept socket
  net: hns: Fix a skb used after free bug
  net: hns: Fix a wrong op phy C45 code
  net: macb: Adding Support for Jumbo Frames up to 10240 Bytes in SAMA5D3
  net: Update networking MAINTAINERS entry.
  virtio-net: fix leaking of ctx array
  cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES
  cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
  cfg80211: Check if NAN service ID is of expected size
  cfg80211: Check if PMKID attribute is of expected size
  arcnet: com20020-pci: Fix an error handling path in 'com20020pci_probe()'
  nfp: flower: add missing clean up call to avoid memory leaks
  vrf: fix bug_on triggered by rx when destroying a vrf
  ptp: dte: Use LL suffix for 64-bit constants
  sctp: set the value of flowi6_oif to sk_bound_dev_if to make sctp_v6_get_dst to find the correct route entry.
  ...

2 files changed, 9 insertions, 0 deletions

diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 0fbf73dd531a..199056933dcb 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -22,6 +22,7 @@ struct route_info {
 #include <net/flow.h>
 #include <net/ip6_fib.h>
 #include <net/sock.h>
+#include <net/lwtunnel.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/route.h>
@@ -232,4 +233,11 @@ static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt,
 		return daddr;
 }
 
+static inline bool rt6_duplicate_nexthop(struct rt6_info *a, struct rt6_info *b)
+{
+	return a->dst.dev == b->dst.dev &&
+	       a->rt6i_idev == b->rt6i_idev &&
+	       ipv6_addr_equal(&a->rt6i_gateway, &b->rt6i_gateway) &&
+	       !lwtunnel_cmp_encap(a->dst.lwtstate, b->dst.lwtstate);
+}
 #endif
diff --git a/include/net/sock.h b/include/net/sock.h
index 48e4d5c38f85..8c85791fc196 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1697,6 +1697,7 @@ static inline void sock_orphan(struct sock *sk)
 
 static inline void sock_graft(struct sock *sk, struct socket *parent)
 {
+	WARN_ON(parent->sk);
 	write_lock_bh(&sk->sk_callback_lock);
 	sk->sk_wq = parent->wq;
 	parent->sk = sk;