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linux-stable/net
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Sunil Muthuswamy 9d3586bcda hv_sock: Add support for delayed close 
commit a9eeb998c2 upstream.

Currently, hvsock does not implement any delayed or background close
logic. Whenever the hvsock socket is closed, a FIN is sent to the peer, and
the last reference to the socket is dropped, which leads to a call to
.destruct where the socket can hang indefinitely waiting for the peer to
close it's side. The can cause the user application to hang in the close()
call.

This change implements proper STREAM(TCP) closing handshake mechanism by
sending the FIN to the peer and the waiting for the peer's FIN to arrive
for a given timeout. On timeout, it will try to terminate the connection
(i.e. a RST). This is in-line with other socket providers such as virtio.

This change does not address the hang in the vmbus_hvsock_device_unregister
where it waits indefinitely for the host to rescind the channel. That
should be taken up as a separate fix.

Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-04 09:30:51 +02:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-07-06 12:32:12 +02:00
9p 9p/virtio: Add cleanup path in p9_virtio_init 2019-07-26 09:14:25 +02:00
802
8021q vlan: disable SIOCSHWTSTAMP in container 2019-05-16 19:41:30 +02:00
appletalk appletalk: Fix use-after-free in atalk_proc_exit 2019-04-20 09:16:05 +02:00
atm net: atm: Fix potential Spectre v1 vulnerabilities 2019-04-27 09:36:30 +02:00
ax25 ax25: fix inconsistent lock state in ax25_destroy_timer 2019-06-22 08:15:13 +02:00
batman-adv batman-adv: Fix duplicated OGMs on NETDEV_UP 2019-07-26 09:14:03 +02:00
bluetooth Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug 2019-07-26 09:14:30 +02:00
bpf bpf/test_run: support cgroup local storage 2018-08-03 00:47:32 +02:00
bpfilter net: bpfilter: use get_pid_task instead of pid_task 2018-10-17 22:03:40 -07:00
bridge net: bridge: stp: don't cache eth dest pointer before skb pull 2019-07-28 08:29:27 +02:00
caif Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
can can: af_can: Fix error path of can_init() 2019-07-14 08:11:07 +02:00
ceph libceph: wait for latest osdmap in ceph_monc_blacklist_add() 2019-03-27 14:14:39 +09:00
core tcp: fix tcp_set_congestion_control() use from bpf hook 2019-07-28 08:29:26 +02:00
dcb net: dcb: Add priority-to-DSCP map getters 2018-07-27 13:17:50 -07:00
dccp dccp: do not use ipv6 header for ipv4 flow 2019-04-03 06:26:15 +02:00
decnet decnet: fix using plain integer as NULL warning 2018-08-09 14:11:24 -07:00
dns_resolver net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
dsa net: dsa: Fix error cleanup path in dsa_init_module 2019-05-16 19:41:29 +02:00
ethernet net: Convert GRO SKB handling to list_head. 2018-06-26 11:33:04 +09:00
hsr net/hsr: fix possible crash in add_timer() 2019-03-19 13:12:38 +01:00
ieee802154 ieee802154: lowpan_header_create check must check daddr 2019-01-09 17:38:31 +01:00
ife
ipv4 tcp: Reset bytes_acked and bytes_received when disconnecting 2019-07-28 08:29:26 +02:00
ipv6 ipv6: Unlink sibling route in case of failure 2019-07-28 08:29:24 +02:00
iucv Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
kcm kcm: switch order of device registration to fix a crash 2019-04-17 08:38:40 +02:00
key af_key: fix leaks in key_pol_get_resp and dump_sp. 2019-07-26 09:14:01 +02:00
l2tp l2tp: use rcu_dereference_sk_user_data() in l2tp_udp_encap_recv() 2019-05-05 14:42:37 +02:00
l3mdev
lapb lapb: fixed leak of control-blocks. 2019-06-22 08:15:13 +02:00
llc llc: fix skb leak in llc_build_and_send_ui_pkt() 2019-06-04 08:02:31 +02:00
mac80211 mac80211: do not start any work during reconfigure flow 2019-07-14 08:11:11 +02:00
mac802154 net: mac802154: tx: expand tailroom if necessary 2018-08-06 11:21:37 +02:00
mpls mpls: Return error for RTA_GATEWAY attribute 2019-03-10 07:17:19 +01:00
ncsi net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler 2018-08-22 21:39:08 -07:00
netfilter net: make skb_dst_force return true when dst is refcounted 2019-07-28 08:29:24 +02:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-03-10 07:17:18 +01:00
netlink genetlink: Fix a memory leak on error path 2019-04-03 06:26:15 +02:00
netrom netrom: hold sock when setting skb->destructor 2019-07-28 08:29:27 +02:00
nfc nfc: fix potential illegal memory access 2019-07-28 08:29:25 +02:00
nsh nsh: set mac len based on inner packet 2018-07-12 16:55:29 -07:00
openvswitch net: openvswitch: fix csum updates for MPLS actions 2019-07-28 08:29:24 +02:00
packet net/packet: fix memory leak in packet_set_ring() 2019-07-03 13:14:47 +02:00
phonet phonet: fix building with clang 2019-03-23 20:09:51 +01:00
psample
qrtr net: qrtr: Reset the node and port ID of broadcast messages 2018-07-05 20:20:03 +09:00
rds rds: Fix warning. 2019-07-10 09:53:46 +02:00
rfkill Here are quite a large number of fixes, notably: 2018-09-03 22:12:02 -07:00
rose net/rose: fix unbound loop in rose_loopback_timer() 2019-05-02 09:59:00 +02:00
rxrpc rxrpc: Fix send on a connected, but unbound socket 2019-07-28 08:29:25 +02:00
sched net: sched: verify that q!=NULL before setting q->flags 2019-07-28 08:29:30 +02:00
sctp sctp: not bind the socket in sctp_connect 2019-07-28 08:29:27 +02:00
smc net/smc: move unhash before release of clcsock 2019-07-10 09:53:44 +02:00
strparser net: strparser: partially revert "strparser: Call skb_unclone conditionally" 2019-05-16 19:41:27 +02:00
sunrpc net :sunrpc :clnt :Fix xps refcount imbalance on the error path 2019-07-14 08:11:15 +02:00
switchdev
tipc tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb 2019-07-03 13:14:49 +02:00
tls net/tls: make sure offload also gets the keys wiped 2019-07-28 08:29:27 +02:00
unix missing barriers in some of unix_sock ->addr and ->path accesses 2019-03-19 13:12:41 +01:00
vmw_vsock hv_sock: Add support for delayed close 2019-08-04 09:30:51 +02:00
wimax wimax: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
wireless mac80211: fix rate reporting inside cfg80211_calculate_bitrate_he() 2019-07-14 08:11:04 +02:00
x25 net/x25: fix a race in x25_bind() 2019-03-19 13:12:40 +01:00
xdp xsk: Properly terminate assignment in xskq_produce_flush_desc 2019-07-26 09:14:12 +02:00
xfrm ipsec: select crypto ciphers for xfrm_algo 2019-07-26 09:14:10 +02:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-09 17:38:33 +01:00
Kconfig net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
Makefile bpfilter: check compiler capability in Kconfig 2018-06-28 13:36:39 +09:00
socket.c net: socket: set sock->sk to NULL after calling proto_ops::release() 2019-03-10 07:17:18 +01:00
sysctl_net.c