android_kernel_oneplus_msm8998/net/ipv4
WANG Cong 32a44f1ba7 tcp: reset sk_rx_dst in tcp_disconnect()
commit d747a7a51b00984127a88113cdbbc26f91e9d815 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 lro: remove dead code 2013-12-29 16:34:25 -05:00
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 ipv4: coding style: comparison for inequality with NULL 2015-04-03 12:11:15 -04:00
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.c vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices 2016-06-24 10:18:18 -07:00
ip_tunnel_core.c tunnels: Remove encapsulation offloads on decap. 2016-10-31 04:13:59 -06:00
ip_vti.c vti: flush x-netns xfrm cache when vti interface is removed 2016-09-30 10:18:36 +02:00
ipcomp.c ipv4: coding style: comparison for equality with NULL 2015-04-03 12:11:15 -04:00
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 net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
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.c tcp: reset sk_rx_dst in tcp_disconnect() 2017-07-21 07:44:54 +02:00
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 memcg: cleanup static keys decrement 2015-02-12 18:54:10 -08:00
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: whitespace fixes 2014-09-01 18:12:45 -07:00
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: prepare CC get_info() access from getsockopt() 2015-04-29 17:10:38 -04:00
tcp_veno.c tcp: add tcp_in_slow_start helper 2015-07-09 14:22:52 -07:00
tcp_westwood.c tcp_westwood: fix tcp_westwood_info() 2015-05-05 19:50:09 -04:00
tcp_yeah.c tcp: cwnd does not increase in TCP YeAH 2016-09-30 10:18:34 +02:00
tunnel4.c
udp.c udp: fix IP_CHECKSUM handling 2016-11-15 07:46:39 +01:00
udp_diag.c sock_diag: specify info_size per inet protocol 2015-06-15 19:49:22 -07:00
udp_impl.h net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
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
udplite.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
xfrm4_input.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c ipv4: ERROR: code indent should use tabs where possible 2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c ipv4: hash net ptr into fragmentation bucket selection 2015-03-25 14:07:04 -04:00
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: Remove duplicate semicolon 2014-06-30 07:49:47 +02:00
xfrm4_state.c inet: make no_pmtu_disc per namespace and kill ipv4_config 2013-12-18 16:58:20 -05:00
xfrm4_tunnel.c