netdev - [PATCH net 0/4] net: fix and tighten rcu dereference checks

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Date:	Fri,  1 Apr 2016 01:29:38 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, sasha.levin@...cle.com,
	daniel@...earbox.net, alexei.starovoitov@...il.com,
	mkubecek@...e.cz
Subject: [PATCH net 0/4] net: fix and tighten rcu dereference checks

Only the first patch is really applicable for stable. It adds appropriate
socket locks so lockdep doesn't complain if tuntap's ioctls modify the
filters on the socket.

Rest of the patches tighten the rcu dereference socket lock checks.

Last patch fixes missing rcu_read_locks which were discovered by this
change. Certainly there are more to come.

Hannes Frederic Sowa (4):
  tun: add socket locking around sk_{attach,detach}_filter
  net: proper check if we hold the socket lock during dereference
  sock: use lockdep_sock_is_held were appropriate
  tcp: various missing rcu_read_lock around __sk_dst_get

 drivers/net/tun.c        | 12 ++++++++++++
 include/net/sock.h       | 10 ++++++++--
 include/net/tcp.h        |  5 ++++-
 net/core/filter.c        |  6 +++---
 net/core/sock.c          |  7 +++++--
 net/dccp/ipv4.c          |  2 +-
 net/dccp/ipv6.c          |  2 +-
 net/ipv4/af_inet.c       |  2 +-
 net/ipv4/cipso_ipv4.c    |  3 ++-
 net/ipv4/ip_sockglue.c   |  4 ++--
 net/ipv4/tcp_input.c     | 18 ++++++++++++++----
 net/ipv4/tcp_ipv4.c      |  8 +++-----
 net/ipv4/tcp_metrics.c   | 12 +++++-------
 net/ipv4/tcp_output.c    | 22 ++++++++++++++++++++--
 net/ipv6/ipv6_sockglue.c |  6 ++++--
 net/ipv6/tcp_ipv6.c      |  2 +-
 net/socket.c             |  2 +-
 17 files changed, 87 insertions(+), 36 deletions(-)

-- 
2.5.5