Jozsef Kadlecsik 7d367e0668 netfilter: ctnetlink: fix soft lockup when netlink adds new entries (v2) ... Marcell Zambo and Janos Farago noticed and reported that when new conntrack entries are added via netlink and the conntrack table gets full, soft lockup happens. This is because the nf_conntrack_lock is held while nf_conntrack_alloc is called, which is in turn wants to lock nf_conntrack_lock while evicting entries from the full table. The patch fixes the soft lockup with limiting the holding of the nf_conntrack_lock to the minimum, where it's absolutely required. It required to extend (and thus change) nf_conntrack_hash_insert so that it makes sure conntrack and ctnetlink do not add the same entry twice to the conntrack table. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>		2012-02-24 12:24:15 +01:00
..
9p	9p: Reduce object size with CONFIG_NET_9P_DEBUG	2012-01-05 10:51:44 -06:00
bluetooth	Bluetooth: Remove usage of __cancel_delayed_work()	2012-02-15 13:09:26 +02:00
caif	caif-spi: Bugfix for dump upon device removal	2011-12-06 13:34:12 -05:00
irda
iucv	af_iucv: get rid of state IUCV_SEVERED	2011-12-20 14:05:03 -05:00
netfilter	netfilter: ctnetlink: fix soft lockup when netlink adds new entries (v2)	2012-02-24 12:24:15 +01:00
netns	netns: Fail conspicously if someone uses net_generic at an inappropriate time.	2012-01-27 21:06:02 -05:00
nfc	NFC: Export a new attribute nfcid1 in target info	2012-01-04 14:30:43 -05:00
phonet	net: dont hold rtnl mutex during netlink dump callbacks	2011-05-02 15:26:28 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-12-23 17:13:56 -05:00
tc_act
act_api.h	net: sched: constify tcf_proto and tc_action	2011-07-06 02:52:16 -07:00
addrconf.h	ipv6: Check RA for sllao when configuring optimistic ipv6 address (v2)	2012-01-04 15:53:20 -05:00
af_ieee802154.h
af_rxrpc.h
af_unix.h	af_unix: Move CINQ/COUTQ code to helpers	2011-12-30 16:45:45 -05:00
ah.h
arp.h	ipv6: Use universal hash for NDISC.	2011-12-28 15:06:58 -05:00
atmclip.h	atm: clip: Use device neigh support on top of "arp_tbl".	2011-11-30 18:51:03 -05:00
ax25.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
ax88796.h
cfg80211-wext.h	cfg80211: remove unused wext handler exports	2011-08-08 14:26:29 -04:00
cfg80211.h	kernel-doc: fix new warnings in cfg80211.h	2012-01-23 08:44:54 -08:00
checksum.h
cipso_ipv4.h	doc: Update the email address for Paul Moore in various source files	2011-08-01 17:58:33 -07:00
cls_cgroup.h
compat.h	net: Add sendmmsg socket system call	2011-05-05 11:10:14 -07:00
datalink.h
dcbevent.h	dcb: Add stub routines for !CONFIG_DCB	2011-10-06 15:49:51 -04:00
dcbnl.h	dcb: add DCBX mode to event notifier attributes	2011-10-06 15:49:51 -04:00
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dn.h
dsa.h	dsa: Include linux/if_ether.h to fix build error	2011-12-01 11:41:06 -05:00
dsfield.h
dst_ops.h	net: Rename the dst_opt default_mtu method to mtu	2011-11-26 14:29:50 -05:00
dst.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-12-23 17:13:56 -05:00
esp.h
ethoc.h
fib_rules.h
flow_keys.h	flow_dissector: use a 64bit load/store	2011-11-29 13:17:03 -05:00
flow.h	ipv4: reset flowi parameters on route connect	2012-02-04 19:29:48 -05:00
garp.h	garp: remove last synchronize_rcu() call	2011-05-12 17:46:56 -04:00
gen_stats.h
genetlink.h	genetlink: Add genl_notify()	2011-12-03 09:35:05 -08:00
gre.h
icmp.h	ipv4: reduce percpu needs for icmpmsg mibs	2011-11-09 16:04:20 -05:00
ieee80211_radiotap.h	wireless: move ieee80211chan2mhz macro	2011-11-11 12:32:50 -05:00
ieee802154_netdev.h
ieee802154.h	6LoWPAN: add fragmentation support	2011-11-14 00:19:42 -05:00
if_inet6.h	ipv6: updates to privacy addresses per RFC 4941.	2011-08-01 18:05:00 -07:00
inet6_connection_sock.h	inet: Pass flowi to ->queue_xmit().	2011-05-08 15:28:28 -07:00
inet6_hashtables.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
inet_common.h
inet_connection_sock.h	net: rename sk_clone to sk_clone_lock	2011-11-08 17:07:07 -05:00
inet_ecn.h	inet: add rfc 3168 extract in front of INET_ECN_encapsulate()	2011-10-22 01:25:23 -04:00
inet_frag.h
inet_hashtables.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
inet_sock.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
inet_timewait_sock.h	inet: remove rcu protection on tw_net	2011-12-14 13:34:55 -05:00
inetpeer.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-12-02 13:49:21 -05:00
ip6_checksum.h
ip6_fib.h	IPv6: Avoid taking write lock for /proc/net/ipv6_route	2011-12-30 17:07:33 -05:00
ip6_route.h	Merge branch 'nf-next' of git://1984.lsi.us.es/net-next	2011-12-25 02:21:45 -05:00
ip6_tunnel.h
ip_fib.h
ip_vs.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-01-02 18:56:49 -05:00
ip.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
ipcomp.h
ipconfig.h
ipip.h
ipv6.h	ipv6: Add fragment reporting to ipv6_skip_exthdr().	2011-12-03 09:35:10 -08:00
ipx.h
iw_handler.h
lapb.h	wan: make LAPB callbacks const	2011-09-16 19:20:20 -04:00
lib80211.h	include: replace linux/module.h with "struct module" wherever possible	2011-10-31 19:32:32 -04:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h	bonding,llc: Fix structure sizeof incompatibility for some PDUs	2011-05-13 15:13:24 -04:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
mac80211.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-01-08 13:21:22 -08:00
mip6.h
mld.h
ndisc.h	ipv6: Create fast inline ipv6 neigh lookup just like ipv4.	2011-12-28 15:41:23 -05:00
neighbour.h	ipv6: Use universal hash for NDISC.	2011-12-28 15:06:58 -05:00
net_namespace.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
net_ratelimit.h	net: Kill ratelimit.h dependency in linux/net.h	2011-05-27 13:41:33 -04:00
netdma.h
netevent.h
netlabel.h	doc: Update the email address for Paul Moore in various source files	2011-08-01 17:58:33 -07:00
netlink.h	netlink: clarify attribute length check documentation	2011-11-04 17:48:23 -04:00
netprio_cgroup.h	netprio_cgroup: fix wrong memory access when NETPRIO_CGROUP=m	2012-02-10 15:08:57 -05:00
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h	net: ping: fix build failure	2011-05-17 14:16:58 -04:00
pkt_cls.h
pkt_sched.h	net: sched: constify tcf_proto and tc_action	2011-07-06 02:52:16 -07:00
protocol.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
psnap.h
raw.h
rawv6.h
red.h	net_sched: sfq: add optional RED on top of SFQ	2012-01-12 20:05:28 -08:00
regulatory.h	cfg80211: pass DFS region to drivers through reg_notifier()	2011-11-21 16:20:41 -05:00
request_sock.h	tcp: Change possible SYN flooding messages	2011-09-15 14:49:43 -04:00
rose.h
route.h	ipv4: reset flowi parameters on route connect	2012-02-04 19:29:48 -05:00
rtnetlink.h	rtnetlink: Fix problem with buffer allocation	2012-02-21 16:56:45 -05:00
sch_generic.h	net: Make qdisc_skb_cb upper size bound explicit.	2012-02-09 13:50:34 -05:00
scm.h	af_unix: dont send SCM_CREDENTIALS by default	2011-09-28 13:29:50 -04:00
secure_seq.h	tcp: add const qualifiers where possible	2011-10-21 05:22:42 -04:00
slhc_vj.h
snmp.h	Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2012-01-09 13:08:28 -08:00
sock.h	net: explicitly add jump_label.h header to sock.h	2012-01-26 17:13:26 -05:00
stp.h
tcp_memcontrol.h	tcp buffer limitation: per-cgroup limit	2011-12-12 19:04:11 -05:00
tcp_states.h
tcp.h	net: Disambiguate kernel message	2012-02-01 14:41:50 -05:00
timewait_sock.h
transp_v6.h	net: relax PKTINFO non local ipv6 udp xmit check	2011-08-30 17:39:01 -04:00
udp.h	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
udplite.h	udplite: fast-path computation of checksum coverage	2011-10-17 19:07:30 -04:00
wext.h
wimax.h	net: wimax: Remove of unused 'rfkill_input' pointer	2011-06-24 17:50:44 -07:00
wpan-phy.h
x25.h
x25device.h
xfrm.h	net: remove ipv6_addr_copy()	2011-11-22 16:43:32 -05:00