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Pablo Neira Ayuso 590b52e10d netfilter: conntrack: skip clash resolution if nat is in place 
The clash resolution is not easy to apply if the NAT table is
registered. Even if no NAT rules are installed, the nul-binding ensures
that a unique tuple is used, thus, the packet that loses race gets a
different source port number, as described by:

http://marc.info/?l=netfilter-devel&m=146818011604484&w=2

Clash resolution with NAT is also problematic if addresses/port range
ports are used since the conntrack that wins race may describe a
different mangling that we may have earlier applied to the packet via
nf_nat_setup_info().

Fixes: 71d8c47fc653 ("netfilter: conntrack: introduce clash resolution on insertion race")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
2016-07-12 16:28:41 +02:00
..
ipset
netfilter: ipset: fix race condition in ipset save, swap and delete
2016-03-28 17:57:45 +02:00
ipvs
ipvs: fix bind to link-local mcast IPv6 address in backup
2016-07-07 20:21:32 +02:00
core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
Kconfig
netfilter: tee: select NF_DUP_IPV6 unconditionally
2016-02-08 12:58:28 +01:00
Makefile
netfilter: nf_tables: add forward expression to the netdev family
2016-01-04 17:48:38 +01:00
nf_conntrack_acct.c
netfilter: Remove uses of seq_<foo> return values
2015-03-18 10:51:35 +01:00
nf_conntrack_amanda.c
net: Remove state argument from skb_find_text()
2015-02-22 15:59:54 -05:00
nf_conntrack_broadcast.c
…
nf_conntrack_core.c
netfilter: conntrack: skip clash resolution if nat is in place
2016-07-12 16:28:41 +02:00
nf_conntrack_ecache.c
netfilter: conntrack: move expectation event helper to ecache.c
2016-04-12 23:01:57 +02:00
nf_conntrack_expect.c
netfilter: conntrack: use a single expectation table for all namespaces
2016-05-06 11:50:01 +02:00
nf_conntrack_extend.c
…
nf_conntrack_ftp.c
netfilter: nf_ct_helper: Fix helper unregister count.
2016-05-30 12:21:22 +02:00
nf_conntrack_h323_asn1.c
…
nf_conntrack_h323_main.c
ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST
2015-05-25 13:25:33 -04:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2016-06-01 17:54:19 -07:00
nf_conntrack_irc.c
netfilter: nf_ct_helper: Fix helper unregister count.
2016-05-30 12:21:22 +02:00
nf_conntrack_l3proto_generic.c
netfilter: Convert print_tuple functions to return void
2014-11-05 14:10:33 -05:00
nf_conntrack_labels.c
netfilter: connlabels: change nf_connlabels_get bit arg to 'highest used'
2016-04-18 20:39:48 +02:00
nf_conntrack_netbios_ns.c
…
nf_conntrack_netlink.c
netfilter: conntrack: use a single expectation table for all namespaces
2016-05-06 11:50:01 +02:00
nf_conntrack_pptp.c
netfilter: nf_conntrack: push zone object into functions
2015-08-11 12:29:01 +02:00
nf_conntrack_proto_dccp.c
libnl: nla_put_be64(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
nf_conntrack_proto_generic.c
netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple
2015-09-18 22:00:04 +02:00
nf_conntrack_proto_gre.c
netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple
2015-09-18 22:00:04 +02:00
nf_conntrack_proto_sctp.c
netfilter: conntrack: don't acquire lock during seq_printf
2016-04-19 20:26:25 +02:00
nf_conntrack_proto_tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2016-04-24 00:12:08 -04:00
nf_conntrack_proto_udp.c
netfilter: conntrack: introduce clash resolution on insertion race
2016-05-05 16:39:50 +02:00
nf_conntrack_proto_udplite.c
netfilter: conntrack: introduce clash resolution on insertion race
2016-05-05 16:39:50 +02:00
nf_conntrack_proto.c
netfilter: nf_conntrack: remove dead code
2014-01-03 23:41:37 +01:00
nf_conntrack_sane.c
netfilter: nf_ct_helper: Fix helper unregister count.
2016-05-30 12:21:22 +02:00
nf_conntrack_seqadj.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_conntrack_sip.c
netfilter: nf_ct_helper: Fix helper unregister count.
2016-05-30 12:21:22 +02:00
nf_conntrack_snmp.c
…
nf_conntrack_standalone.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2016-06-01 17:54:19 -07:00
nf_conntrack_tftp.c
netfilter: nf_ct_helper: Fix helper unregister count.
2016-05-30 12:21:22 +02:00
nf_conntrack_timeout.c
netfilter: cttimeout: add netns support
2015-12-14 12:48:58 +01:00
nf_conntrack_timestamp.c
netfilter: nf_ct_timestamp: Fix BUG_ON after netns deletion
2013-12-20 14:58:29 +01:00
nf_dup_netdev.c
net: remove skb_sender_cpu_clear()
2016-03-01 17:36:47 -05:00
nf_internals.h
netfilter: nf_queue: fix nf_queue_nf_hook_drop()
2015-07-23 16:17:58 +02:00
nf_log_common.c
netfilter: bridge: add helpers for fetching physin/outdev
2015-04-08 16:49:08 +02:00
nf_log.c
netfilter: nf_log: wait for rcu grace after logger unregistration
2015-09-17 13:37:31 +02:00
nf_nat_amanda.c
…
nf_nat_core.c
netfilter: conntrack: use a single nat bysource table for all namespaces
2016-05-09 16:45:49 +02:00
nf_nat_ftp.c
…
nf_nat_helper.c
netfilter: nf_conntrack: make sequence number adjustments usuable without NAT
2013-08-28 00:26:48 +02:00
nf_nat_irc.c
netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
2014-01-06 14:17:17 +01:00
nf_nat_proto_common.c
netfilter: use IS_ENABLED() macro
2014-06-30 11:38:03 +02:00
nf_nat_proto_dccp.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_sctp.c
netfilter: use IS_ENABLED() macro
2014-06-30 11:38:03 +02:00
nf_nat_proto_tcp.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_udp.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_udplite.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_unknown.c
…
nf_nat_redirect.c
netfilter: nf_nat_redirect: add missing NULL pointer check
2015-10-27 06:54:56 +01:00
nf_nat_sip.c
netfilter: replace strnicmp with strncasecmp
2014-10-14 02:18:24 +02:00
nf_nat_tftp.c
…
nf_queue.c
netfilter: nf_queue: Make the queue_handler pernet
2016-05-25 11:54:22 +02:00
nf_sockopt.c
netfilter: don't use mutex_lock_interruptible()
2014-08-08 16:47:23 +02:00
nf_synproxy_core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2015-09-05 21:57:42 -07:00
nf_tables_api.c
netfilter: nf_tables: fix memory leak if expr init fails
2016-06-23 14:15:24 +02:00
nf_tables_core.c
netfilter: nf_tables: fix a wrong check to skip the inactive rules
2016-06-15 12:17:24 +02:00
nf_tables_inet.c
netfilter: nf_tables: release objects on netns destruction
2015-12-28 18:34:35 +01:00
nf_tables_netdev.c
netfilter: nf_tables_netdev: fix error path in module initialization
2016-01-18 13:53:37 +01:00
nf_tables_trace.c
libnl: nla_put_be64(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
nfnetlink_acct.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-15 13:32:48 -04:00
nfnetlink_cthelper.c
netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()
2015-12-28 18:41:41 +01:00
nfnetlink_cttimeout.c
netfilter: conntrack: use a single hashtable for all namespaces
2016-05-05 16:39:47 +02:00
nfnetlink_log.c
nfnetlink: remove nfnetlink_alloc_skb
2016-02-18 11:42:19 -05:00
nfnetlink_queue.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2016-06-01 17:54:19 -07:00
nfnetlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-02-23 00:09:14 -05:00
nft_bitwise.c
netfilter: nf_tables: support variable sized data in nft_data_init()
2015-04-13 17:17:30 +02:00
nft_byteorder.c
netfilter: nft_byteorder: avoid unneeded le/be conversion steps
2016-01-13 14:02:59 +01:00
nft_cmp.c
netfilter: nf_tables: support variable sized data in nft_data_init()
2015-04-13 17:17:30 +02:00
nft_compat.c
netfilter: nft_compat: check match/targetinfo attr size
2016-03-11 11:37:56 +01:00
nft_counter.c
libnl: nla_put_be64(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
nft_ct.c
netfilter: nft_ct: fix expiration getter
2016-07-08 14:55:14 +02:00
nft_dup_netdev.c
netfilter: nf_tables: add packet duplication to the netdev family
2016-01-03 21:04:23 +01:00
nft_dynset.c
libnl: nla_put_be64(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
nft_exthdr.c
netfilter: nf_tables: switch registers to 32 bit addressing
2015-04-13 17:17:29 +02:00
nft_fwd_netdev.c
netfilter: nf_tables: add forward expression to the netdev family
2016-01-04 17:48:38 +01:00
nft_hash.c
netfilter: nf_tables: reject loops from set element jump to chain
2016-06-15 12:17:23 +02:00
nft_immediate.c
netfilter: nf_tables: support variable sized data in nft_data_init()
2015-04-13 17:17:30 +02:00
nft_limit.c
libnl: nla_put_be64(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
nft_log.c
netfilter: nf_tables: Use pkt->net instead of computing net from the passed net_devices
2015-09-18 21:58:49 +02:00
nft_lookup.c
netfilter: nf_tables: add flag to indicate set contains expressions
2015-04-13 20:12:32 +02:00
nft_masq.c
netfilter: nft_masq: support port range
2016-03-02 20:05:27 +01:00
nft_meta.c
netfilter: nft_meta: set skb->nf_trace appropriately
2016-06-23 14:15:33 +02:00
nft_nat.c
netfilter: nf_tables: switch registers to 32 bit addressing
2015-04-13 17:17:29 +02:00
nft_payload.c
netfilter: nft_payload: add packet mangling support
2015-11-25 13:54:51 +01:00
nft_queue.c
netfilter: nf_tables: kill nft_pktinfo.ops
2015-09-18 21:58:01 +02:00
nft_rbtree.c
netfilter: nf_tables: reject loops from set element jump to chain
2016-06-15 12:17:23 +02:00
nft_redir.c
netfilter: nf_tables: add register parsing/dumping helpers
2015-04-13 17:17:28 +02:00
nft_reject_inet.c
ipv4: Push struct net down into nf_send_reset
2015-09-29 20:21:31 +02:00
nft_reject.c
netfilter; Add some missing default cases to switch statements in nft_reject.
2015-04-27 13:20:34 -04:00
x_tables.c
netfilter: x_tables: don't reject valid target size on some architectures
2016-06-02 14:09:33 +02:00
xt_addrtype.c
netfilter: x_tables: Use par->net instead of computing from the passed net devices
2015-09-18 21:58:25 +02:00
xt_AUDIT.c
netfilter: Convert uses of __constant_<foo> to <foo>
2014-03-13 14:13:19 +01:00
xt_bpf.c
net: filter: split 'struct sk_filter' into socket and bpf parts
2014-08-02 15:03:58 -07:00
xt_cgroup.c
netfilter: implement xt_cgroup cgroup2 path match
2015-12-14 20:34:55 +01:00
xt_CHECKSUM.c
…
xt_CLASSIFY.c
…
xt_cluster.c
net: use reciprocal_scale() helper
2014-08-23 12:21:21 -07:00
xt_comment.c
…
xt_connbytes.c
netfilter: Convert pr_warning to pr_warn
2014-09-10 12:40:10 -07:00
xt_connlabel.c
netfilter: connlabels: change nf_connlabels_get bit arg to 'highest used'
2016-04-18 20:39:48 +02:00
xt_connlimit.c
netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple
2015-09-18 22:00:04 +02:00
xt_connmark.c
netfilter: Fix FSF address in file headers
2013-12-06 12:37:57 -05:00
xt_CONNSECMARK.c
…
xt_conntrack.c
…
xt_cpu.c
…
xt_CT.c
netfilter: cttimeout: add netns support
2015-12-14 12:48:58 +01:00
xt_dccp.c
…
xt_devgroup.c
…
xt_dscp.c
…
xt_DSCP.c
netfilter: fix various sparse warnings
2014-11-13 12:14:42 +01:00
xt_ecn.c
…
xt_esp.c
…
xt_hashlimit.c
netfilter: Remove checks of seq_printf() return values
2014-11-05 14:11:02 -05:00
xt_helper.c
…
xt_hl.c
…
xt_HL.c
…
xt_HMARK.c
net: use reciprocal_scale() helper
2014-08-23 12:21:21 -07:00
xt_IDLETIMER.c
netfilter: IDLETIMER: fix race condition when destroy the target
2016-04-29 14:28:48 +02:00
xt_ipcomp.c
netfilter: xt_ipcomp: Use ntohs to ease sparse warning
2014-02-19 11:41:25 +01:00
xt_iprange.c
…
xt_ipvs.c
ipvs: Pass ipvs into conn_out_get
2015-09-24 09:34:41 +09:00
xt_l2tp.c
netfilter: introduce l2tp match extension
2014-01-09 21:36:39 +01:00
xt_LED.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-08-05 18:46:26 -07:00
xt_length.c
…
xt_limit.c
…
xt_LOG.c
netfilter: x_tables: Use par->net instead of computing from the passed net devices
2015-09-18 21:58:25 +02:00
xt_mac.c
…
xt_mark.c
netfilter: xt_MARK: Add ARP support
2015-05-14 13:00:27 +02:00
xt_multiport.c
…
xt_nat.c
…
xt_NETMAP.c
…
xt_nfacct.c
netfilter: nfacct: per network namespace support
2015-08-07 11:50:56 +02:00
xt_NFLOG.c
netfilter: x_tables: Use par->net instead of computing from the passed net devices
2015-09-18 21:58:25 +02:00
xt_NFQUEUE.c
netfilter: xt_NFQUEUE: separate reusable code
2013-12-07 23:20:45 +01:00
xt_osf.c
netfilter: xt_osf: remove unused variable
2016-02-29 13:59:43 +01:00
xt_owner.c
netfilter: xt_owner: use skb_to_full_sk() helper
2015-11-08 20:56:39 -05:00
xt_physdev.c
netfilter: physdev: use helpers
2015-04-08 16:49:09 +02:00
xt_pkttype.c
…
xt_policy.c
…
xt_quota.c
…
xt_rateest.c
net_sched: add 64bit rate estimators
2013-06-11 02:51:03 -07:00
xt_RATEEST.c
net: sched: make bstats per cpu and estimator RCU safe
2014-09-30 01:02:26 -04:00
xt_realm.c
…
xt_recent.c
netfilter: x_tables: Use par->net instead of computing from the passed net devices
2015-09-18 21:58:25 +02:00
xt_REDIRECT.c
netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module
2014-11-27 13:08:42 +01:00
xt_repldata.h
net: netfilter: LLVMLinux: vlais-netfilter
2014-06-07 11:44:39 -07:00
xt_sctp.c
…
xt_SECMARK.c
…
xt_set.c
netfilter: ipset: Fix coding styles reported by checkpatch.pl
2015-06-14 10:40:18 +02:00
xt_socket.c
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
xt_state.c
…
xt_statistic.c
net: replace macros net_random and net_srandom with direct calls to prandom
2014-01-14 15:15:25 -08:00
xt_string.c
net: Remove state argument from skb_find_text()
2015-02-22 15:59:54 -05:00
xt_tcpmss.c
…
xt_TCPMSS.c
netfilter: xt_TCPMSS: handle CHECKSUM_COMPLETE in tcpmss_tg6()
2016-01-18 12:18:17 +01:00
xt_TCPOPTSTRIP.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
xt_tcpudp.c
…
xt_TEE.c
netfilter: tee: select NF_DUP_IPV6 unconditionally
2016-02-08 12:58:28 +01:00
xt_time.c
…
xt_TPROXY.c
inet: refactor inet[6]_lookup functions to take skb
2016-02-11 03:54:14 -05:00
xt_TRACE.c
…
xt_u32.c
…