Eric Dumazet f886497212 ipv4: fix dst race in sk_dst_get() ... When IP route cache had been removed in linux-3.6, we broke assumption that dst entries were all freed after rcu grace period. DST_NOCACHE dst were supposed to be freed from dst_release(). But it appears we want to keep such dst around, either in UDP sockets or tunnels. In sk_dst_get() we need to make sure dst refcount is not 0 before incrementing it, or else we might end up freeing a dst twice. DST_NOCACHE set on a dst does not mean this dst can not be attached to a socket or a tunnel. Then, before actual freeing, we need to observe a rcu grace period to make sure all other cpus can catch the fact the dst is no longer usable. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Dormando <dormando@rydia.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-06-25 17:41:44 -07:00
..
9p	9pnet: p9_client->conn field is unused. Remove it.	2014-03-25 16:38:16 -05:00
bluetooth	Bluetooth: Clearly distinguish mgmt LTK type from authenticated property	2014-05-23 11:24:04 -07:00
caif	…
irda	include/net/: Fix FSF address in file headers	2013-12-06 12:37:56 -05:00
iucv	…
netfilter	netfilter: nf_tables: use u32 for chain use counter	2014-06-16 13:07:44 +02:00
netns	ipv4: make ip_local_reserved_ports per netns	2014-05-14 15:31:45 -04:00
nfc	NFC: Add RAW socket type support for SOCKPROTO_RAW	2014-05-20 00:06:04 +02:00
phonet	…
sctp	net: sctp: migrate most recently used transport to ktime	2014-06-11 12:23:17 -07:00
tc_act	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
6lowpan.h	6lowpan: include net/net_namespace.h on 6lowpan namepsace header	2014-04-20 18:18:55 -04:00
Space.h	drivers: net: Include new header file in sbni.c	2013-12-19 18:51:20 -05:00
act_api.h	net_sched: act: refuse to remove bound action outside	2014-02-12 19:23:32 -05:00
addrconf.h	net: ipv6: Introduce ip6_sk_dst_hoplimit.	2014-04-30 13:31:26 -04:00
af_ieee802154.h	ieee802154: add dgram sockopts for security control	2014-05-16 17:23:41 -04:00
af_rxrpc.h	…
af_unix.h	…
af_vsock.h	vsock: Make transport the proto owner	2014-05-05 13:13:50 -04:00
ah.h	…
arp.h	arp: make arp_invalidate static	2013-12-28 17:02:46 -05:00
atmclip.h	…
ax25.h	…
ax88796.h	…
busy_poll.h	sched, net: Fixup busy_loop_us_clock()	2014-01-13 17:39:11 +01:00
cfg80211-wext.h	…
cfg80211.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2014-05-22 13:58:36 -04:00
checksum.h	net: Allow csum_add to be provided in arch	2014-05-05 15:26:29 -04:00
cipso_ipv4.h	cipso: cleanup cipso_v4_translate() when !CONFIG_NETLABEL	2013-12-10 17:56:54 -05:00
cls_cgroup.h	cgroup: clean up cgroup_subsys names and initialization	2014-02-08 10:36:58 -05:00
codel.h	net: introduce reciprocal_scale helper and convert users	2014-01-21 23:17:20 -08:00
compat.h	…
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	include/net/: Fix FSF address in file headers	2013-12-06 12:37:56 -05:00
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
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	…
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
dsa.h	net: dsa: add ds_to_priv	2014-04-30 13:31:25 -04:00
dsfield.h	…
dst.h	ipv4: add a sock pointer to dst->output() path.	2014-04-15 13:47:15 -04:00
dst_ops.h	…
esp.h	net: move pskb_put() to core code	2013-11-07 19:28:58 -05:00
ethoc.h	net: ethoc: set up MII management bus clock	2014-02-04 20:19:51 -08:00
fib_rules.h	…
firewire.h	…
flow.h	ipv4, fib: pass LOOPBACK_IFINDEX instead of 0 to flowi4_iif	2014-04-16 15:05:11 -04:00
flow_keys.h	…
flowcache.h	flowcache: Make flow cache name space aware	2014-02-12 07:02:11 +01:00
garp.h	…
gen_stats.h	…
genetlink.h	genl: Add genlmsg_new_unicast() for unicast message allocation	2014-01-06 15:51:53 -08:00
gre.h	gre: Call gso_make_checksum	2014-06-04 22:46:38 -07:00
gro_cells.h	…
icmp.h	…
ieee80211_radiotap.h	mac80211: propagate STBC / LDPC flags to radiotap	2014-02-06 09:34:58 +01:00
ieee802154.h	ieee802154: add definitions for link-layer security and header functions	2014-05-15 15:51:42 -04:00
ieee802154_netdev.h	ieee802154, mac802154: implement devkey record option	2014-05-16 17:23:42 -04:00
if_inet6.h	ipv6: move DAD and addrconf_verify processing to workqueue	2014-03-28 16:54:50 -04:00
inet6_connection_sock.h	ipv4: add a sock pointer to ip_queue_xmit()	2014-04-15 12:58:34 -04:00
inet6_hashtables.h	ipv6: split inet6_ehashfn to hash functions per compilation unit	2013-10-19 19:45:34 -04:00
inet_common.h	…
inet_connection_sock.h	ipv4: add a sock pointer to ip_queue_xmit()	2014-04-15 12:58:34 -04:00
inet_ecn.h	tunnel: fix RFC number in comment for INET_ECN_decapsulate()	2014-05-07 15:30:52 -04:00
inet_frag.h	inet: remove old fragmentation hash initializing	2013-10-23 17:01:41 -04:00
inet_hashtables.h	net: Use a more standard macro for INET_ADDR_COOKIE	2014-05-14 16:07:23 -04:00
inet_sock.h	net: support marking accepting TCP sockets	2014-05-13 18:35:09 -04:00
inet_timewait_sock.h	ipv6: tcp: fix flowlabel value in ACK messages send from TIME_WAIT	2014-01-17 17:56:33 -08:00
inetpeer.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-06-03 23:32:12 -07:00
ip.h	inetpeer: get rid of ip_id_count	2014-06-02 11:00:41 -07:00
ip6_checksum.h	udp: Generic functions to set checksum	2014-06-04 22:46:38 -07:00
ip6_fib.h	ipv6: do not overwrite inetpeer metrics prematurely	2014-03-27 15:09:07 -04:00
ip6_route.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-05-24 00:32:30 -04:00
ip6_tunnel.h	net: unify the pcpu_tstats and br_cpu_netstats as one	2014-01-04 20:10:24 -05:00
ip_fib.h	…
ip_tunnels.h	ipv4: add a sock pointer to dst->output() path.	2014-04-15 13:47:15 -04:00
ip_vs.h	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
ipcomp.h	…
ipconfig.h	…
ipv6.h	inetpeer: get rid of ip_id_count	2014-06-02 11:00:41 -07:00
ipx.h	net: Move prototype declaration to header file include/net/ipx.h from net/ipx/af_ipx.c	2014-02-09 17:32:50 -08:00
iw_handler.h	…
lapb.h	…
lib80211.h	…
llc.h	llc: make lock static	2014-01-03 20:56:48 -05:00
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	…
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_sap.h	…
mac80211.h	mac80211: add a single-transaction driver op to switch contexts	2014-05-26 11:04:41 +02:00
mac802154.h	ieee802154: add header structs with endiannes and operations	2014-03-14 22:15:26 -04:00
mip6.h	include/net/: Fix FSF address in file headers	2013-12-06 12:37:56 -05:00
mld.h	…
mrp.h	…
ndisc.h	…
neighbour.h	neigh: use NEIGH_VAR_INIT in ndo_neigh_setup functions.	2014-01-16 11:31:58 -08:00
net_namespace.h	6lowpan: nuke net_ieee802154_lowpan() accessor when 6lowpan is disabled	2014-04-24 12:36:00 -04:00
net_ratelimit.h	…
netdma.h	…
netevent.h	…
netlabel.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-01-25 11:17:34 -08:00
netlink.h	…
netprio_cgroup.h	cgroup: clean up cgroup_subsys names and initialization	2014-02-08 10:36:58 -05:00
netrom.h	…
nexthop.h	…
nl802154.h	ieee802154: use ieee802154_addr instead of *_sa variants	2014-03-14 22:15:26 -04:00
p8022.h	…
ping.h	ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams	2014-01-19 19:53:18 -08:00
pkt_cls.h	sched, cls: check if we could overwrite actions when changing a filter	2014-04-27 23:42:39 -04:00
pkt_sched.h	net_sched: drr: warn when qdisc is not work conserving	2014-06-11 15:50:59 -07:00
protocol.h	net: Eliminate no_check from protosw	2014-05-23 16:28:53 -04:00
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: Enable GO operation on additional channels	2014-04-09 10:55:34 +02:00
request_sock.h	…
rose.h	…
route.h	ipv4: remove ip_rt_dump from route.c	2014-03-24 12:45:01 -04:00
rtnetlink.h	rtnl: make ifla_policy static	2014-02-18 18:15:42 -05:00
sch_generic.h	sched, cls: check if we could overwrite actions when changing a filter	2014-04-27 23:42:39 -04:00
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	net: clean up snmp stats code	2014-05-07 16:06:05 -04:00
sock.h	ipv4: fix dst race in sk_dst_get()	2014-06-25 17:41:44 -07:00
stp.h	…
tcp.h	tcp: add gfp parameter to tcp_fragment	2014-06-10 22:30:58 -07:00
tcp_memcontrol.h	tcp_memcontrol: Kill struct tcp_memcontrol	2013-10-21 18:43:02 -04:00
tcp_states.h	…
timewait_sock.h	…
transp_v6.h	ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams	2014-01-19 19:53:18 -08:00
tso.h	net: Add a software TSO helper API	2014-05-22 14:57:15 -04:00
udp.h	udp: call __skb_checksum_complete when doing full checksum	2014-06-15 01:00:49 -07:00
udplite.h	…
vsock_addr.h	…
vxlan.h	vxlan: Add support for UDP checksums (v4 sending, v6 zero csums)	2014-06-04 22:46:39 -07:00
wext.h	…
wimax.h	wimax: Spelling s/than/that/, wording s/destinatary/recipient/	2014-05-05 15:37:55 +02:00
wpan-phy.h	ieee802154: add netlink APIs for smartMAC configuration	2014-02-17 16:42:39 -05:00
x25.h	…
x25device.h	…
xfrm.h	xfrm: Remove useless xfrm_audit struct.	2014-04-23 08:21:04 +02:00