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linux/net/ipv6
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Hangbin Liu 841092b44f multicast: do not restore deleted record source filter mode to new one 
commit 08d3ffcc0c upstream.

There are two scenarios that we will restore deleted records. The first is
when device down and up(or unmap/remap). In this scenario the new filter
mode is same with previous one. Because we get it from in_dev->mc_list and
we do not touch it during device down and up.

The other scenario is when a new socket join a group which was just delete
and not finish sending status reports. In this scenario, we should use the
current filter mode instead of restore old one. Here are 4 cases in total.

old_socket        new_socket       before_fix       after_fix
  IN(A)             IN(A)           ALLOW(A)         ALLOW(A)
  IN(A)             EX( )           TO_IN( )         TO_EX( )
  EX( )             IN(A)           TO_EX( )         ALLOW(A)
  EX( )             EX( )           TO_EX( )         TO_EX( )

Fixes: 24803f38a5 (igmp: do not remove igmp souce list info when set link down)
Fixes: 1666d49e1d (mld: do not remove mld souce list info when set link down)
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-11-20 18:05:46 +00:00
..
netfilter netfilter: ipv6: nf_defrag: reduce struct net memory waste 2018-11-20 18:05:17 +00:00
addrconf.c ipv6: fix sparse warning on rt6i_node 2017-11-11 13:33:32 +00:00
addrconf_core.c ipv6: remove rt6i_genid 2014-10-15 12:05:29 +02:00
addrlabel.c ipv6/addrlabel: fix ip6addrlbl_get() 2016-01-25 10:44:00 +00:00
af_inet6.c ipv6: move stub initialization after ipv6 setup completion 2017-07-18 18:40:39 +01:00
ah6.c ah6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
anycast.c ipv6: restore the behavior of ipv6_sock_ac_drop() 2014-10-15 12:05:28 +02:00
datagram.c ipv6/udp: use sticky pktinfo egress ifindex on connect() 2016-03-09 10:38:49 +00:00
esp6.c xfrm: Return error on unknown encap_type in init_state 2018-03-03 15:52:15 +00:00
exthdrs.c ipv6: Need to export ipv6_push_frag_opts for tunneling now. 2017-08-26 02:14:43 +01:00
exthdrs_core.c ipv6: re-enable fragment header matching in ipv6_find_hdr 2016-03-24 10:01:14 +00:00
exthdrs_offload.c ipv6: fix exthdrs offload registration in out_rt path 2015-09-30 13:20:50 +01:00
fib6_rules.c ipv6: Do not leak throw route references 2017-09-15 18:30:13 +01:00
icmp.c ipv6: fix endianness error in icmpv6_err 2016-08-22 22:38:15 +01:00
inet6_connection_sock.c ipv6: add complete rcu protection around np->opt 2015-12-18 16:06:24 +00:00
inet6_hashtables.c inet: convert inet_ehash_secret and ipv6_hash_secret to net_get_random_once 2013-10-19 19:45:35 -04:00
ip6_checksum.c udplite: fix partial checksum initialization 2018-06-16 22:22:18 +01:00
ip6_fib.c ipv6: fix typo in fib6_net_exit() 2017-11-26 13:50:36 +00:00
ip6_flowlabel.c ipv6: fix a lockdep splat 2016-02-25 10:51:01 +00:00
ip6_gre.c ip6_gre: better validate user provided tunnel names 2018-10-21 08:45:15 +01:00
ip6_icmp.c ipv6: Kill ipv6 dependency of icmpv6_send(). 2013-04-29 13:54:36 -04:00
ip6_input.c ipv6: Make MLD packets to only be processed locally 2015-08-10 17:10:15 +01:00
ip6_offload.c ipv6: Fix leak in ipv6_gso_segment(). 2017-09-15 18:29:56 +01:00
ip6_offload.h ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
ip6_output.c net: test tailroom before appending to linear skb 2018-10-21 08:46:13 +01:00
ip6_tunnel.c ip6_tunnel: better validate user provided tunnel names 2018-10-21 08:45:15 +01:00
ip6_vti.c vti6: better validate user provided tunnel names 2018-10-21 08:45:15 +01:00
ip6mr.c ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds 2018-11-20 18:05:10 +00:00
ipcomp6.c ipcomp6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
ipv6_sockglue.c netfilter: drop outermost socket lock in getsockopt() 2018-06-16 22:22:14 +01:00
Kconfig ip6_vti: Fix build when NET_IP_TUNNEL is not set. 2014-02-20 14:29:49 +01:00
Makefile xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
mcast.c multicast: do not restore deleted record source filter mode to new one 2018-11-20 18:05:46 +00:00
mip6.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
ndisc.c net: ipv6: send unsolicited NA on admin up 2017-08-26 02:14:33 +01:00
netfilter.c netfilter: Fix potential use after free in ip6_route_me_harder() 2014-05-09 02:36:39 +02:00
output_core.c ipv6: accept 64k - 1 packet length in ip6_find_1stfragopt() 2017-11-11 13:33:24 +00:00
ping.c net: ping: do not abuse udp_poll() 2017-09-15 18:29:56 +01:00
proc.c snmp: fix some left over of snmp stats 2014-05-14 15:33:47 -04:00
protocol.c net: remove outdated comment for ipv4 and ipv6 protocol handler 2013-11-28 18:47:51 -05:00
raw.c net: ping: do not abuse udp_poll() 2017-09-15 18:29:56 +01:00
reassembly.c ipv6: distinguish frag queues by device for multicast and link-local packets 2015-12-18 16:06:23 +00:00
route.c ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy 2018-10-21 08:45:40 +01:00
sit.c ipv6: sit: better validate user provided tunnel names 2018-10-21 08:45:15 +01:00
syncookies.c ipv6: add complete rcu protection around np->opt 2015-12-18 16:06:24 +00:00
sysctl_net_ipv6.c net: add a sysctl to reflect the fwmark on replies 2014-05-13 18:35:08 -04:00
tcp_ipv6.c tcp md5sig: Use skb's saddr when replying to an incoming segment 2018-03-03 15:51:53 +00:00
tcpv6_offload.c net-gre-gro: Fix a bug that breaks the forwarding path 2014-07-16 14:45:26 -07:00
tunnel6.c ipv6: fix tunnel error handling 2015-12-13 17:49:43 +00:00
udp.c udp: prevent skbs lingering in tunnel socket queues 2017-03-16 02:27:17 +00:00
udp_impl.h net: ipv4/ipv6: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
udp_offload.c net: avoid skb_warn_bad_offload false positives on UFO 2017-11-11 13:33:18 +00:00
udplite.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
xfrm6_input.c xfrm: Reinject transport-mode packets through tasklet 2018-03-03 15:52:02 +00:00
xfrm6_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_mode_ro.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-09-15 18:29:54 +01:00
xfrm6_mode_transport.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-09-15 18:29:54 +01:00
xfrm6_mode_tunnel.c ipv6: update skb->csum when CE mark is propagated 2016-01-28 11:06:06 +00:00
xfrm6_output.c ipv6: Fix IPsec pre-encap fragmentation check 2015-11-16 11:27:17 +00:00
xfrm6_policy.c xfrm6: avoid potential infinite loop in _decode_session6() 2018-10-21 08:46:04 +01:00
xfrm6_protocol.c xfrm6: Properly handle unsupported protocols 2014-05-06 07:08:38 +02:00
xfrm6_state.c xfrm: make local error reporting more robust 2013-08-14 13:07:12 +02:00
xfrm6_tunnel.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00