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Johannes Berg d9237e75fd mac80211: discard multicast and 4-addr A-MSDUs 
commit ea720935cf6686f72def9d322298bf7e9bd53377 upstream.

In mac80211, multicast A-MSDUs are accepted in many cases that
they shouldn't be accepted in:
 * drop A-MSDUs with a multicast A1 (RA), as required by the
   spec in 9.11 (802.11-2012 version)
 * drop A-MSDUs with a 4-addr header, since the fourth address
   can't actually be useful for them; unless 4-address frame
   format is actually requested, even though the fourth address
   is still not useful in this case, but ignored

Accepting the first case, in particular, is very problematic
since it allows anyone else with possession of a GTK to send
unicast frames encapsulated in a multicast A-MSDU, even when
the AP has client isolation enabled.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10 16:36:35 +01:00
..
6lowpan 6lowpan: put mcast compression in an own function 2015-10-21 00:49:25 +02:00
9p IB/cma: Add support for network namespaces 2015-10-28 12:32:48 -04:00
802
8021q vlan: Do not put vlan headers back on bridge and macvlan ports 2015-11-17 14:38:35 -05:00
appletalk
atm atm: deal with setting entry before mkip was called 2015-09-17 22:13:32 -07:00
ax25 AX.25: Close socket connection on session completion 2016-07-11 09:31:12 -07:00
batman-adv batman-adv: remove unused callback from batadv_algo_ops struct 2016-10-07 15:23:47 +02:00
bluetooth Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU 2016-08-20 18:09:19 +02:00
bridge bridge: re-introduce 'fix parsing of MLDv2 reports' 2016-09-30 10:18:37 +02:00
caif net: caif: fix misleading indentation 2016-09-30 10:18:35 +02:00
can can: avoid using timeval for uapi 2015-10-13 17:42:34 +02:00
ceph libceph: apply new_state before new_up_client on incrementals 2016-08-10 11:49:29 +02:00
core tunnels: Don't apply GRO to multiple layers of encapsulation. 2016-10-31 04:13:59 -06:00
dcb net/dcb: make dcbnl.c explicitly non-modular 2015-10-09 07:52:27 -07:00
dccp tcp/dccp: remove obsolete WARN_ON() in icmp handlers 2016-04-20 15:42:04 +09:00
decnet decnet: Do not build routes to devices without decnet private data. 2016-05-18 17:06:35 -07:00
dns_resolver net: dns_resolver: convert time_t to time64_t 2015-11-18 16:27:46 -05:00
dsa net: dsa: use switchdev obj for VLAN add/del ops 2015-11-01 15:56:11 -05:00
ethernet net: help compiler generate better code in eth_get_headlen 2015-09-28 22:51:15 -07:00
hsr net/hsr: fix a warning message 2015-11-23 14:56:15 -05:00
ieee802154 net: fix percpu memory leaks 2015-11-02 22:47:14 -05:00
ipv4 tunnels: Remove encapsulation offloads on decap. 2016-10-31 04:13:59 -06:00
ipv6 tunnels: Remove encapsulation offloads on decap. 2016-10-31 04:13:59 -06:00
ipx
irda net/irda: handle iriap_register_lsap() allocation failure 2016-09-30 10:18:36 +02:00
iucv af_iucv: Validate socket address length in iucv_sock_bind() 2016-03-03 15:07:03 -08:00
key af_key: fix two typos 2015-10-23 03:05:19 -07:00
l2tp l2tp: fix configuration passed to setup_udp_tunnel_sock() 2016-06-24 10:18:17 -07:00
l3mdev net: Add netif_is_l3_slave 2015-10-07 04:27:43 -07:00
lapb
llc net: fix infoleak in llc 2016-05-18 17:06:40 -07:00
mac80211 mac80211: discard multicast and 4-addr A-MSDUs 2016-11-10 16:36:35 +01:00
mac802154 mac802154: llsec: use kzfree 2015-10-21 00:49:24 +02:00
mpls mpls: find_outdev: check for err ptr in addition to NULL check 2016-04-20 15:42:07 +09:00
netfilter ipvs: fix bind to link-local mcast IPv6 address in backup 2016-10-07 15:23:41 +02:00
netlabel netlabel: add address family checks to netlbl_{sock,req}_delattr() 2016-08-20 18:09:22 +02:00
netlink netlink: Fix dump skb leak/double free 2016-06-24 10:18:16 -07:00
netrom
nfc net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA 2015-12-01 15:45:05 -05:00
openvswitch vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices 2016-06-24 10:18:18 -07:00
packet packet: Use symmetric hash for PACKET_FANOUT_HASH. 2016-07-27 09:47:31 -07:00
phonet phonet: properly unshare skbs in phonet_rcv() 2016-01-31 11:29:00 -08:00
rds rds: fix an infoleak in rds_inc_info_copy 2016-09-15 08:27:51 +02:00
rfkill rfkill: fix rfkill_fop_read wait_event usage 2016-03-03 15:07:26 -08:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-06-24 02:58:51 -07:00
rxrpc net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA 2015-12-01 15:45:05 -05:00
sched net_sched: fix mirrored packets checksum 2016-07-27 09:47:31 -07:00
sctp sctp: lack the check for ports in sctp_v6_cmp_addr 2016-04-20 15:41:58 +09:00
sunrpc sunrpc: fix write space race causing stalls 2016-10-28 03:01:31 -04:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-06-24 10:18:16 -07:00
tipc tipc: fix NULL pointer dereference in shutdown() 2016-09-30 10:18:36 +02:00
unix af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock' 2016-09-30 10:18:36 +02:00
vmw_vsock VSOCK: do not disconnect socket when peer has shutdown SEND only 2016-05-18 17:06:41 -07:00
wimax net:wimax: Fix doucble word "the the" in networking.xml 2015-08-09 22:43:52 -07:00
wireless nl80211: validate number of probe response CSA counters 2016-09-30 10:18:38 +02:00
x25 net: fix a kernel infoleak in x25 module 2016-05-18 17:06:43 -07:00
xfrm xfrm: Fix crash observed during device unregistration and decryption 2016-04-20 15:42:05 +09:00
compat.c
Kconfig net: Introduce L3 Master device abstraction 2015-09-29 20:40:32 -07:00
Makefile net: Introduce L3 Master device abstraction 2015-09-29 20:40:32 -07:00
socket.c net: Fix use after free in the recvmmsg exit path 2016-04-20 15:42:03 +09:00
sysctl_net.c net: Use ns_capable_noaudit() when determining net sysctl permissions 2016-09-15 08:27:50 +02:00