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1eed677933b816978abc4e3e18ecae5f254cb9be
rockchip-kernel/include/net
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Xin Long 1eed677933 sctp: fix the transport dead race check by using atomic_add_unless on refcnt 
Now when __sctp_lookup_association is running in BH, it will try to
check if t->dead is set, but meanwhile other CPUs may be freeing this
transport and this assoc and if it happens that
__sctp_lookup_association checked t->dead a bit too early, it may think
that the association is still good while it was already freed.

So we fix this race by using atomic_add_unless in sctp_transport_hold.
After we get one transport from hashtable, we will hold it only when
this transport's refcnt is not 0, so that we can make sure t->asoc
cannot be freed before we hold the asoc again.

Note that sctp association is not freed using RCU so we can't use
atomic_add_unless() with it as it may just be too late for that either.

Fixes: 4f00878126 ("sctp: apply rhashtable api to send/recv path")
Reported-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-28 15:59:32 -08:00
..
9p
9p: switch p9_client_read() to passing struct iov_iter *
2015-04-11 22:28:27 -04:00
bluetooth
Bluetooth: Add support for Start Limited Discovery command
2016-01-05 17:02:50 +01:00
caif
caif: fix a signedness bug in cfpkt_iterate()
2015-02-20 17:35:14 -05:00
irda
irda: Convert function pointer arrays and uses to const
2014-12-10 15:33:16 -05:00
iucv
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter
netfilter: nf_conntrack: use safer way to lock all buckets
2016-01-20 14:15:31 +01:00
netns
ipv4: Namespecify the tcp_keepalive_intvl sysctl knob
2016-01-10 17:32:09 -05:00
nfc
nfc: netlink: HCI event connectivity implementation
2015-12-29 19:06:20 +01:00
phonet
…
sctp
sctp: fix the transport dead race check by using atomic_add_unless on refcnt
2016-01-28 15:59:32 -08:00
tc_act
act_connmark: Remember the struct net instead of guessing it.
2015-09-18 21:59:31 +02:00
6lowpan.h
6lowpan: add debugfs support
2015-12-10 01:25:25 +01:00
act_api.h
net_sched: make tcf_hash_destroy() static
2015-08-26 11:01:44 -07:00
addrconf.h
soreuseport: fast reuseport UDP socket selection
2016-01-04 22:49:58 -05:00
af_ieee802154.h
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
af_rxrpc.h
…
af_unix.h
unix: avoid use-after-free in ep_remove_wait_queue
2015-11-23 12:29:58 -05:00
af_vsock.h
Revert "Merge branch 'vsock-virtio'"
2015-12-08 21:55:49 -05:00
ah.h
ipsec: Remove obsolete MAX_AH_AUTH_LEN
2014-09-18 10:54:36 +02:00
arp.h
neigh: Factor out ___neigh_lookup_noref
2015-03-04 00:23:23 -05:00
atmclip.h
…
ax25.h
ax25: Stop using sock->sk_protinfo.
2015-06-28 16:55:44 -07:00
ax88796.h
…
bond_3ad.h
bonding: simplify / unify event handling code for 3ad mode.
2015-11-02 22:52:24 -05:00
bond_alb.h
net: Move bonding headers under include/net
2014-11-10 13:27:49 -05:00
bond_options.h
bonding: convert num_grat_arp to the new bonding option API
2015-07-27 01:05:24 -07:00
bonding.h
bonding: implement lower state change propagation
2015-12-03 11:49:27 -05:00
busy_poll.h
net: un-inline sk_busy_loop()
2015-11-18 16:17:38 -05:00
cfg80211-wext.h
…
cfg80211.h
cfg80211: Add support for aborting an ongoing scan
2015-12-04 14:43:32 +01:00
cfg802154.h
nl802154: add support for security layer
2015-09-30 13:16:44 +02:00
checksum.h
rco: Clean up casting errors
2015-12-13 23:57:45 -05:00
cipso_ipv4.h
cipso: don't use IPCB() to locate the CIPSO IP option
2015-02-11 14:46:37 -05:00
cls_cgroup.h
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
codel.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-05-13 14:31:43 -04:00
compat.h
net: switch importing msghdr from userland to {compat_,}import_iovec()
2015-04-09 00:02:26 -04:00
datalink.h
net: Move prototype declaration to header file include/net/datalink.h from net/ipx/af_ipx.c
2014-02-09 17:32:50 -08:00
dcbevent.h
include/net/: Fix FSF address in file headers
2013-12-06 12:37:56 -05:00
dcbnl.h
net/dcb: Add IEEE QCN attribute
2015-03-06 21:50:02 -05:00
dn_dev.h
dn_dev: add support for IFA_FLAGS nl attribute
2013-12-10 21:50:00 -05:00
dn_fib.h
…
dn_neigh.h
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
dn_nsp.h
…
dn_route.h
net: Move prototype declaration to appropriate header file from decnet/af_decnet.c
2014-02-09 17:32:49 -08:00
dn.h
net: Move prototype declaration to header file include/net/dn.h from net/decnet/af_decnet.c
2014-02-09 17:32:49 -08:00
dsa.h
net: dsa: remove DSA link polling
2015-12-07 16:35:49 -05:00
dsfield.h
…
dst_metadata.h
gro: Make GRO aware of lightweight tunnels.
2016-01-20 18:48:38 -08:00
dst_ops.h
ipv4, ipv6: Pass net into __ip_local_out and __ip6_local_out
2015-10-08 04:27:02 -07:00
dst.h
net: fix IP early demux races
2015-12-14 23:52:00 -05:00
esp.h
net: move pskb_put() to core code
2013-11-07 19:28:58 -05:00
ethoc.h
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
fib_rules.h
net: ipv6: use common fib_default_rule_pref
2015-09-09 14:19:50 -07:00
firewire.h
…
flow_dissector.h
flow_dissector: Don't use bit fields.
2015-09-01 16:46:08 -07:00
flow.h
net: Rename FLOWI_FLAG_VRFSRC to FLOWI_FLAG_L3MDEV_SRC
2015-10-07 04:27:42 -07:00
flowcache.h
flowcache: Make flow cache name space aware
2014-02-12 07:02:11 +01:00
fou.h
ip_tunnel: Ops registration for secondary encap (fou, gue)
2014-11-12 15:01:35 -05:00
garp.h
…
gen_stats.h
net: sched: enable per cpu qstats
2014-09-30 01:02:26 -04:00
genetlink.h
netlink: add a start callback for starting a netlink dump
2015-12-15 23:25:20 -05:00
geneve.h
geneve: Add geneve_get_rx_port support
2015-12-16 10:58:56 -05:00
gre.h
gre: Remove support for sharing GRE protocol hook.
2015-08-10 14:03:54 -07:00
gro_cells.h
gro_cells: remove spinlock protecting receive queues
2015-08-31 15:17:17 -07:00
gue.h
gue: Protocol constants for remote checksum offload
2014-11-05 16:30:03 -05:00
icmp.h
…
ieee80211_radiotap.h
mac80211: propagate STBC / LDPC flags to radiotap
2014-02-06 09:34:58 +01:00
ieee802154_netdev.h
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
if_inet6.h
ipv6: do retries on stable privacy addresses
2015-03-23 22:12:09 -04:00
ila.h
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
inet6_connection_sock.h
ipv6: remove obsolete inet6 functions
2015-10-03 04:32:42 -07:00
inet6_hashtables.h
ipv6: get rid of __inet6_hash()
2015-03-18 22:00:35 -04:00
inet_common.h
net: avoid NULL deref in inet_ctl_sock_destroy()
2015-11-02 22:46:09 -05:00
inet_connection_sock.h
tcp/dccp: fix hashdance race for passive sessions
2015-10-23 05:42:21 -07:00
inet_ecn.h
ipv6: update skb->csum when CE mark is propagated
2016-01-15 15:07:23 -05:00
inet_frag.h
inet: kill unused skb_free op
2016-01-05 22:25:57 -05:00
inet_hashtables.h
tcp/dccp: fix hashdance race for passive sessions
2015-10-23 05:42:21 -07:00
inet_sock.h
net: Allow accepted sockets to be bound to l3mdev domain
2015-12-18 14:43:38 -05:00
inet_timewait_sock.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
inetpeer.h
inet: tcp: fix inetpeer_set_addr_v4()
2015-12-16 00:14:12 -05:00
ip6_checksum.h
net: add gro_compute_pseudo functions
2014-08-24 18:09:23 -07:00
ip6_fib.h
ipv6: Check rt->dst.from for the DST_NOCACHE route
2015-11-15 17:12:37 -05:00
ip6_route.h
ipv6: kill sk_dst_lock
2015-12-03 11:32:06 -05:00
ip6_tunnel.h
net: make ip6tunnel_xmit definition conditional
2016-01-04 21:50:51 -05:00
ip_fib.h
ipv4: eliminate endianness warnings in ip_fib.h
2016-01-08 21:30:43 -05:00
ip_tunnels.h
ip_tunnel: Move stats update to iptunnel_xmit()
2015-12-25 23:32:23 -05:00
ip_vs.h
ipvs: Remove skb_sknet
2015-09-24 09:34:43 +09:00
ip.h
ipv4: Pass struct net into ip_defrag and ip_check_defrag
2015-10-12 19:44:16 -07:00
ipcomp.h
…
ipconfig.h
…
ipv6.h
ipv6: add ipv6_addr_prefix_copy
2015-12-10 12:55:28 +01:00
ipx.h
switch ipxrtr_route_packet() from iovec to msghdr
2014-11-24 04:28:49 -05:00
iw_handler.h
wext: add checked wrappers for adding events/points to streams
2015-02-28 21:31:12 +01:00
l3mdev.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-01-06 22:54:18 -05:00
lapb.h
…
lib80211.h
lib80211: remove unused print_ssid()
2014-10-14 02:18:27 +02:00
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
llc: Make llc_conn_ev_qfyr_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_conn.h
net: Pass kern from net_proto_family.create to sk_alloc
2015-05-11 10:50:17 -04:00
llc_if.h
…
llc_pdu.h
net: llc: fix order of evaluation in llc_conn_ac_inc_vr_by_1
2014-01-01 22:22:43 -05:00
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
llc: Make llc_sap_action_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_sap.h
…
llc.h
llc: make lock static
2014-01-03 20:56:48 -05:00
lwtunnel.h
dst: Pass net into dst->output
2015-10-08 04:27:03 -07:00
mac80211.h
mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag
2015-12-04 14:43:32 +01:00
mac802154.h
6lowpan: cleanup lowpan_header_decompress
2015-10-21 00:49:24 +02:00
mip6.h
include/net/: Fix FSF address in file headers
2013-12-06 12:37:56 -05:00
mld.h
ipv6: mld: answer mldv2 queries with mldv1 reports in mldv1 fallback
2014-09-22 16:23:15 -04:00
mpls_iptunnel.h
mpls: multipath route support
2015-10-23 06:26:42 -07:00
mpls.h
openvswitch: Add basic MPLS support to kernel
2014-11-05 23:52:33 -08:00
mrp.h
…
ndisc.h
Revert "ipv6: ndisc: inherit metadata dst when creating ndisc requests"
2015-12-01 15:07:59 -05:00
neighbour.h
net: add explicit logging and stat for neighbour table overflow
2015-08-10 13:46:21 -07:00
net_namespace.h
netfilter: cttimeout: add netns support
2015-12-14 12:48:58 +01:00
net_ratelimit.h
…
netevent.h
…
netlabel.h
netlabel: fix the netlbl_catmap_setlong() dummy function
2014-08-07 20:55:21 -04:00
netlink.h
netlink: add nla_get for le32 and le64
2015-09-30 13:16:44 +02:00
netprio_cgroup.h
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
netrom.h
…
nexthop.h
…
nl802154.h
nl802154: add support for security layer
2015-09-30 13:16:44 +02:00
p8022.h
…
ping.h
net: Remove iocb argument from sendmsg and recvmsg
2015-03-02 13:06:31 -05:00
pkt_cls.h
net: sched: remove tcf_proto from ematch calls
2014-10-06 18:02:32 -04:00
pkt_sched.h
net: sched: consolidate tc_classify{,_compat}
2015-08-27 14:18:48 -07:00
protocol.h
udp: restrict offloads to one namespace
2016-01-10 17:28:24 -05:00
psnap.h
…
raw.h
…
rawv6.h
…
red.h
reciprocal_divide: update/correction of the algorithm
2014-01-21 23:17:20 -08:00
regulatory.h
cfg80211: allow wiphy specific regdomain management
2014-12-17 11:49:55 +01:00
request_sock.h
net: add inet_sk_transparent() helper
2015-12-22 17:03:05 -05:00
rose.h
…
route.h
net: Propagate lookup failure in l3mdev_get_saddr to caller
2016-01-04 22:58:30 -05:00
rtnetlink.h
netlink: Rightsize IFLA_AF_SPEC size calculation
2015-10-21 19:15:20 -07:00
sch_generic.h
net, sched: add skb_at_tc_ingress helper
2016-01-10 17:54:28 -05:00
scm.h
…
secure_seq.h
inetpeer: get rid of ip_id_count
2014-06-02 11:00:41 -07:00
slhc_vj.h
…
snmp.h
Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-10-15 07:48:18 +02:00
sock_reuseport.h
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
sock.h
net: sock: remove dead cgroup methods from struct proto
2016-01-21 14:16:51 -08:00
Space.h
drivers: net: Include new header file in sbni.c
2013-12-19 18:51:20 -05:00
stp.h
…
switchdev.h
switchdev: Adding MDB entry offload
2016-01-10 16:50:20 -05:00
tcp_memcontrol.h
tcp_memcontrol: Forward declare cgroup_subsys and mem_cgroup stucts
2016-01-17 12:02:37 -05:00
tcp_states.h
inet: add TCP_NEW_SYN_RECV state
2015-03-12 22:58:12 -04:00
tcp.h
net: tcp_memcontrol: simplify linkage between socket and page counter
2016-01-14 16:00:49 -08:00
timewait_sock.h
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
transp_v6.h
ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams
2014-01-19 19:53:18 -08:00
tso.h
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
udp_tunnel.h
ip_tunnel: Move stats update to iptunnel_xmit()
2015-12-25 23:32:23 -05:00
udp.h
soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF
2016-01-04 22:49:59 -05:00
udplite.h
net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()
2015-02-04 01:34:15 -05:00
vsock_addr.h
…
vxlan.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-17 22:08:28 -05:00
wext.h
…
wimax.h
net: treewide: Fix typo found in DocBook/networking.xml
2014-09-05 17:35:28 -07:00
x25.h
…
x25device.h
…
xfrm.h
xfrm: add rcu protection to sk->sk_policy[]
2015-12-11 19:22:06 -05:00