WANG Cong 32a44f1ba7 tcp: reset sk_rx_dst in tcp_disconnect() ...

commit d747a7a51b upstream.

We have to reset the sk->sk_rx_dst when we disconnect a TCP
connection, because otherwise when we re-connect it this
dst reference is simply overridden in tcp_finish_connect().

This fixes a dst leak which leads to a loopback dev refcnt
leak. It is a long-standing bug, Kevin reported a very similar
(if not same) bug before. Thanks to Andrei for providing such
a reliable reproducer which greatly narrows down the problem.

Fixes: 41063e9dd1 ("ipv4: Early TCP socket demux.")
Reported-by: Andrei Vagin <avagin@gmail.com>
Reported-by: Kevin Xu <kaiwen.xu@hulu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-07-21 07:44:54 +02:00

..

netfilter

netfilter: x_tables: introduce and use xt_copy_counters_from_user

2016-06-24 10:18:24 -07:00

af_inet.c

net: ping: do not abuse udp_poll()

2017-06-14 13:16:19 +02:00

ah4.c

ah4: Fix error return in ah_input().

2015-08-25 13:38:50 -07:00

arp.c

NET: Fix /proc/net/arp for AX.25

2017-06-17 06:39:35 +02:00

cipso_ipv4.c

netlabel: out of bound access in cipso_v4_validate()

2017-02-18 16:39:26 +01:00

datagram.c

net: Set sk_txhash from a random number

2015-07-29 22:44:04 -07:00

devinet.c

ipv4: Don't do expensive useless work during inetdev destroy.

2016-04-20 15:42:03 +09:00

esp4.c

esp4: Fix integrity verification when ESN are used

2016-12-10 19:07:26 +01:00

fib_frontend.c

net: Improve handling of failures on link and route dumps

2017-06-07 12:05:58 +02:00

fib_lookup.h

ipv4: consider TOS in fib_select_default

2015-07-24 22:46:11 -07:00

fib_rules.c

net: ipv6: use common fib_default_rule_pref

2015-09-09 14:19:50 -07:00

fib_semantics.c

ipv4: add reference counting to metrics

2017-06-07 12:05:59 +02:00

fib_trie.c

net: Improve handling of failures on link and route dumps

2017-06-07 12:05:58 +02:00

fou.c

net: add recursion limit to GRO

2016-11-15 07:46:38 +01:00

gre_demux.c

gre: Remove support for sharing GRE protocol hook.

2015-08-10 14:03:54 -07:00

gre_offload.c

net: add recursion limit to GRO

2016-11-15 07:46:38 +01:00

icmp.c

Revert "ipv4/icmp: redirect messages can use the ingress daddr as source"

2015-10-14 06:01:07 -07:00

igmp.c

igmp: add a missing spin_lock_init()

2017-07-05 14:37:14 +02:00

inet_connection_sock.c

dccp/tcp: do not inherit mc_list from parent

2017-06-07 12:05:56 +02:00

inet_diag.c

tcp/dccp: install syn_recv requests into ehash table

2015-10-03 04:32:41 -07:00

inet_fragment.c

net: fix percpu memory leaks

2015-11-02 22:47:14 -05:00

inet_hashtables.c

tcp/dccp: fix hashdance race for passive sessions

2015-10-23 05:42:21 -07:00

inet_lro.c

…

inet_timewait_sock.c

tcp/dccp: fix timewait races in timer handling

2015-09-21 16:32:29 -07:00

inetpeer.c

net: Add helper function to compare inetpeer addresses

2015-08-28 13:32:36 -07:00

ip_forward.c

net: Pass net into dst_output and remove dst_output_okfn

2015-10-08 04:26:54 -07:00

ip_fragment.c

inet: frag: Always orphan skbs inside ip_defrag()

2016-03-03 15:07:04 -08:00

ip_gre.c

vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices

2016-06-24 10:18:18 -07:00

ip_input.c

ipv4: Pass struct net into ip_defrag and ip_check_defrag

2015-10-12 19:44:16 -07:00

ip_options.c

…

ip_output.c

ipv4: Set skb->protocol properly for local output

2016-12-10 19:07:26 +01:00

ip_sockglue.c

ip: fix IP_CHECKSUM handling

2017-02-26 11:07:50 +01:00

ip_tunnel_core.c

tunnels: Remove encapsulation offloads on decap.

2016-10-31 04:13:59 -06:00

ip_tunnel.c

vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices

2016-06-24 10:18:18 -07:00

ip_vti.c

vti: flush x-netns xfrm cache when vti interface is removed

2016-09-30 10:18:36 +02:00

ipcomp.c

…

ipconfig.c

ipconfig: send Client-identifier in DHCP requests

2015-10-18 19:23:52 -07:00

ipip.c

ipip: ioctl: Remove superfluous IP-TTL handling.

2015-12-18 16:07:59 -05:00

ipmr.c

ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route

2016-11-15 07:46:37 +01:00

Kconfig

geneve: Consolidate Geneve functionality in single module.

2015-08-27 15:42:48 -07:00

Makefile

tcp: track the packet timings in RACK

2015-10-21 07:00:48 -07:00

netfilter.c

ipv4: Pass struct net into ip_route_me_harder

2015-09-29 20:21:32 +02:00

ping.c

ping: implement proper locking

2017-04-30 05:49:29 +02:00

proc.c

net: track success and failure of TCP PMTU probing

2015-07-21 22:36:33 -07:00

protocol.c

…

raw.c

ipv4, ipv6: ensure raw socket message is big enough to hold an IP header

2017-05-14 13:32:58 +02:00

route.c

ipv4: add reference counting to metrics

2017-06-07 12:05:59 +02:00

syncookies.c

tcp/dccp: fix hashdance race for passive sessions

2015-10-23 05:42:21 -07:00

sysctl_net_ipv4.c

ipv4: use the right lock for ping_group_range

2016-11-15 07:46:38 +01:00

tcp_bic.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_cdg.c

tcp: do not slow start when cwnd equals ssthresh

2015-07-09 14:22:52 -07:00

tcp_cong.c

tcp: disallow cwnd undo when switching congestion control

2017-06-14 13:16:19 +02:00

tcp_cubic.c

tcp_cubic: do not set epoch_start in the future

2015-09-17 22:35:07 -07:00

tcp_dctcp.c

dctcp: avoid bogus doubling of cwnd after loss

2016-11-21 10:06:39 +01:00

tcp_diag.c

tcp: ensure proper barriers in lockless contexts

2015-11-15 18:36:38 -05:00

tcp_fastopen.c

tcp: initialize max window for a new fastopen socket

2017-02-04 09:45:09 +01:00

tcp_highspeed.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_htcp.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_hybla.c

tcp: do not slow start when cwnd equals ssthresh

2015-07-09 14:22:52 -07:00

tcp_illinois.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_input.c

tcp: fix tcp_mark_head_lost to check skb len before fragmenting

2017-07-15 11:57:49 +02:00

tcp_ipv4.c

dccp/tcp: fix routing redirect race

2017-03-22 12:04:17 +01:00

tcp_lp.c

tcp: fix wraparound issue in tcp_lp

2017-05-14 13:32:58 +02:00

tcp_memcontrol.c

…

tcp_metrics.c

tcp: convert cached rtt from usec to jiffies when feeding initial rto

2016-04-20 15:41:56 +09:00

tcp_minisocks.c

tcp: do not inherit fastopen_req from parent

2017-05-14 13:32:58 +02:00

tcp_offload.c

tcp: reserve tcp_skb_mss() to tcp stack

2015-06-11 16:33:10 -07:00

tcp_output.c

tcp: do not underestimate skb->truesize in tcp_trim_head()

2017-05-14 13:32:58 +02:00

tcp_probe.c

…

tcp_recovery.c

tcp: use RACK to detect losses

2015-10-21 07:00:53 -07:00

tcp_scalable.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_timer.c

tcp: fix various issues for sockets morphing to listen state

2017-03-22 12:04:15 +01:00

tcp_vegas.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_vegas.h

…

tcp_veno.c

tcp: add tcp_in_slow_start helper

2015-07-09 14:22:52 -07:00

tcp_westwood.c

…

tcp_yeah.c

tcp: cwnd does not increase in TCP YeAH

2016-09-30 10:18:34 +02:00

tcp.c

tcp: reset sk_rx_dst in tcp_disconnect()

2017-07-21 07:44:54 +02:00

tunnel4.c

…

udp_diag.c

sock_diag: specify info_size per inet protocol

2015-06-15 19:49:22 -07:00

udp_impl.h

…

udp_offload.c

net: add recursion limit to GRO

2016-11-15 07:46:38 +01:00

udp_tunnel.c

tunnel: Clear IPCB(skb)->opt before dst_link_failure called

2016-04-20 15:41:56 +09:00

udp.c

udp: fix IP_CHECKSUM handling

2016-11-15 07:46:39 +01:00

udplite.c

…

xfrm4_input.c

netfilter: Pass net into okfn

2015-09-17 17:18:37 -07:00

xfrm4_mode_beet.c

…

xfrm4_mode_transport.c

…

xfrm4_mode_tunnel.c

…

xfrm4_output.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-10-24 06:54:12 -07:00

xfrm4_policy.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

2015-12-22 16:26:31 -05:00

xfrm4_protocol.c

…

xfrm4_state.c

…

xfrm4_tunnel.c

…