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675d76ad0a
linux/net
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Hangbin Liu 675d76ad0a ip6_gre: do not confirm neighbor when do pmtu update 
When we do ipv6 gre pmtu update, we will also do neigh confirm currently.
This will cause the neigh cache be refreshed and set to REACHABLE before
xmit.

But if the remote mac address changed, e.g. device is deleted and recreated,
we will not able to notice this and still use the old mac address as the neigh
cache is REACHABLE.

Fix this by disable neigh confirm when do pmtu update

v5: No change.
v4: No change.
v3: Do not remove dst_confirm_neigh, but add a new bool parameter in
    dst_ops.update_pmtu to control whether we should do neighbor confirm.
    Also split the big patch to small ones for each area.
v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu.

Reported-by: Jianlin Shi <jishi@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-24 22:28:54 -08:00
..
6lowpan 6lowpan: no need to check return value of debugfs_create functions 2019-07-06 12:50:01 +02:00
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
802 treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
8021q net: remove unnecessary variables and callback 2019-10-24 14:53:49 -07:00
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 16:27:24 -08:00
ax25 net: use helpers to change sk_ack_backlog 2019-11-06 16:14:48 -08:00
batman-adv treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
bluetooth compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
bpf treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
bpfilter Kbuild updates for v5.3 2019-07-12 16:03:16 -07:00
bridge net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
can can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-08 11:52:02 +01:00
ceph libceph, rbd, ceph: convert to use the new mount API 2019-11-27 22:28:37 +01:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-12-22 09:54:33 -08:00
dcb
dccp treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
decnet net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
dns_resolver Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
dsa net: dsa: ksz: use common define for tag len 2019-12-20 21:06:49 -08:00
ethernet net: add annotations on hh->hh_len lockless accesses 2019-11-07 20:07:30 -08:00
hsr hsr: fix a NULL pointer dereference in hsr_dev_xmit() 2019-12-05 12:09:02 -08:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
ipv6 ip6_gre: do not confirm neighbor when do pmtu update 2019-12-24 22:28:54 -08:00
iucv treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-07-08 19:48:57 -07:00
l2tp net: ipv6: add net argument to ip6_dst_lookup_flow 2019-12-04 12:27:12 -08:00
l3mdev
lapb
llc llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) 2019-12-20 21:19:36 -08:00
mac80211 mac80211: Turn AQL into an NL80211_EXT_FEATURE 2019-12-13 10:34:04 +01:00
mac802154
mpls net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
ncsi net/ncsi: Disable global multicast filter 2019-09-19 18:04:40 -07:00
netfilter net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
netlabel netlabel: remove redundant assignment to pointer iter 2019-09-01 11:45:02 -07:00
netlink treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
netrom net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
nfc net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive() 2019-12-18 11:57:33 -08:00
nsh
openvswitch treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
packet af_packet: set defaule value for tmo 2019-12-09 14:30:19 -08:00
phonet net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
psample net: psample: fix skb_over_panic 2019-11-26 14:40:13 -08:00
qrtr net: qrtr: Simplify 'qrtr_tun_release()' 2019-10-30 17:58:23 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2019-12-16 10:15:49 +01:00
rose net: use helpers to change sk_ack_backlog 2019-11-06 16:14:48 -08:00
rxrpc RxRPC fixes 2019-12-24 16:12:47 -08:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-12-22 09:54:33 -08:00
sctp net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
smc net/smc: unregister ib devices in reboot_event 2019-12-20 21:31:19 -08:00
strparser
sunrpc This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00
switchdev
tipc tipc: fix use-after-free in tipc_disc_rcv() 2019-12-10 17:45:04 -08:00
tls net/tls: Fix return values to avoid ENOTSUPP 2019-12-06 20:15:39 -08:00
unix treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
vmw_vsock vsock/virtio: add WARN_ON check on virtio_transport_get_ops() 2019-12-16 16:07:12 -08:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless cfg80211: fix double-free after changing network namespace 2019-12-13 10:08:09 +01:00
x25 net/x25: add new state X25_STATE_5 2019-12-09 10:28:43 -08:00
xdp xsk: Add rcu_read_lock around the XSK wakeup 2019-12-19 16:20:48 +01:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
compat.c y2038: socket: use __kernel_old_timespec instead of timespec 2019-11-15 14:38:29 +01:00
Kconfig net: Fix Kconfig indentation, continued 2019-11-21 12:00:21 -08:00
Makefile
socket.c io_uring-5.5-20191212 2019-12-13 14:24:54 -08:00
sysctl_net.c