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Eric Dumazet a2bca5dfab tcp: remove poll() flakes with FastOpen 
[ Upstream commit 0f9fa831aecfc297b7b45d4f046759bcefcf87f0 ]

When using TCP FastOpen for an active session, we send one wakeup event
from tcp_finish_connect(), right before the data eventually contained in
the received SYNACK is queued to sk->sk_receive_queue.

This means that depending on machine load or luck, poll() users
might receive POLLOUT events instead of POLLIN|POLLOUT

To fix this, we need to move the call to sk->sk_state_change()
after the (optional) call to tcp_rcv_fastopen_synack()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2019-07-27 21:47:54 +02:00
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9p
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802
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8021q
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appletalk
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atm
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ax25 Import latest Samsung release 2017-04-18 03:43:52 +02:00
batman-adv batman-adv: Fix broadcast/ogm queue limit on a removed interface 2016-06-07 10:42:53 +02:00
bluetooth Bluetooth: Prevent stack info leak from the EFS element. 2019-07-27 21:45:54 +02:00
bridge Revert "netfilter: ensure number of counters is >0 in do_replace()" 2019-07-27 21:41:44 +02:00
caif
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can
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ceph libceph: introduce ceph_crypt() for in-place en/decryption 2017-04-22 23:02:50 +02:00
core net: fix race on decreasing number of TX queues 2019-07-27 21:46:40 +02:00
dcb
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dccp dccp: don't restart ccid2_hc_tx_rto_expire() if sk in closed state 2019-07-27 21:46:32 +02:00
decnet Import latest Samsung release 2017-04-18 03:43:52 +02:00
dns_resolver
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dsa
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ethernet
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ieee802154
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ipc_router net: ipc_router: Remove duplicate client port check 2017-04-22 23:02:47 +02:00
ipv4 tcp: remove poll() flakes with FastOpen 2019-07-27 21:47:54 +02:00
ipv6 xfrm: Return error on unknown encap_type in init_state 2019-07-27 21:46:27 +02:00
ipx ipx: call ipxitf_put() in ioctl error path 2018-01-21 21:05:49 -08:00
irda irda: Fix lockdep annotations in hashbin_delete(). 2017-04-22 23:02:49 +02:00
iucv
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key af_key: fix buffer overread in parse_exthdrs() 2019-07-27 21:46:23 +02:00
l2tp l2tp: initialise PPP sessions before registering them 2019-07-27 21:46:03 +02:00
lapb
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llc net/llc: avoid BUG_ON() in skb_orphan() 2017-04-22 23:03:00 +02:00
mac80211 mac80211: use constant time comparison with keys 2019-07-27 21:45:47 +02:00
mac802154
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netfilter netfilter: xt_TCPMSS: correct return value in tcpmss_mangle_packet 2019-07-27 21:46:06 +02:00
netlabel netlabel: add address family checks to netlbl_{sock,req}_delattr() 2019-07-27 21:41:59 +02:00
netlink netlink: Fix dump skb leak/double free 2017-04-22 23:02:56 +02:00
netrom
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nfc
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openvswitch
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packet packet: only test po->has_vnet_hdr once in packet_snd 2019-07-27 21:45:34 +02:00
phonet This is the 3.10.96 stable release 2017-04-18 17:16:02 +02:00
rds This is the 3.10.99 stable release 2017-04-18 17:17:46 +02:00
rfkill net: rfkill: Do not ignore errors from regulator_enable() 2019-07-27 21:42:01 +02:00
rmnet_data net: rmnet_data: Add support to configure custom device name 2018-09-05 18:14:57 +02:00
rose
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rxrpc rxrpc: Fix several cases where a padded len isn't checked in ticket decode 2019-07-27 21:44:13 +02:00
sched sch_fq_codel: avoid double free on init failure 2019-07-27 21:45:13 +02:00
sctp sctp: fix a type cast warnings that causes a_rwnd gets the wrong value 2019-07-27 21:45:39 +02:00
sunrpc kernel: make groups_sort calling a responsibility group_info allocators 2019-07-27 21:46:18 +02:00
tipc
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unix net/unix: don't show information about sockets from other namespaces 2019-07-27 21:45:50 +02:00
vmw_vsock VSOCK: do not disconnect socket when peer has shutdown SEND only 2016-06-07 10:42:54 +02:00
wimax
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wireless cfg80211: fix station info handling bugs 2019-07-27 21:46:31 +02:00
x25 net: fix a kernel infoleak in x25 module 2016-06-07 10:42:54 +02:00
xfrm xfrm: Use __skb_queue_tail in xfrm_trans_queue 2019-07-27 21:46:26 +02:00
Kconfig
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Makefile
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activity_stats.c
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compat.c
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nonet.c
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socket.c net: socket: fix recvmmsg not returning error from sock_error 2019-07-27 21:43:06 +02:00
sysctl_net.c
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