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Johannes Berg a0761a3017 mac80211: drop data frames without key on encrypted links 
If we know that we have an encrypted link (based on having had
a key configured for TX in the past) then drop all data frames
in the key selection handler if there's no key anymore.

This fixes an issue with mac80211 internal TXQs - there we can
buffer frames for an encrypted link, but then if the key is no
longer there when they're dequeued, the frames are sent without
encryption. This happens if a station is disconnected while the
frames are still on the TXQ.

Detecting that a link should be encrypted based on a first key
having been configured for TX is fine as there are no use cases
for a connection going from with encryption to no encryption.
With extended key IDs, however, there is a case of having a key
configured for only decryption, so we can't just trigger this
behaviour on a key being configured.

Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.6865c7f28a14.I9fb1d911b064262d33e33dfba730cdeef83926ca@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 		2020-03-26 15:49:24 +01:00
..
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-09 12:13:43 -08:00
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
atm proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ax25 net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -08:00
batman-adv batman-adv: Don't schedule OGM for disabled interface 2020-02-18 09:07:55 +01:00
bluetooth Bluetooth: Fix race condition in hci_release_sock() 2020-01-26 10:34:17 +02:00
bpf bpf: Allow to change skb mark in test_run 2019-12-18 17:05:58 -08:00
bpfilter net/bpfilter: fix dprintf usage for /dev/kmsg 2020-03-14 20:58:10 -07:00
bridge net: bridge: fix stale eth hdr pointer in br_dev_xmit 2020-02-24 11:11:19 -08:00
caif net: caif: Add lockdep expression to RCU traversal primitive 2020-03-11 22:55:25 -07:00
can can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-08 11:52:02 +01:00
ceph Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:26:41 -08:00
core net: core: dev.c: fix a documentation warning 2020-03-17 23:39:29 -07:00
dcb
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dccp treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
decnet net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -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: Don't instantiate phylink for CPU/DSA ports unless needed 2020-03-11 23:46:11 -07:00
ethernet net: remove eth_change_mtu 2020-01-27 11:09:31 +01:00
ethtool ethtool: reject unrecognized request flags 2020-03-16 02:04:24 -07:00
hsr hsr: set .netnsok flag 2020-03-16 01:46:09 -07:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-03 13:28:48 -08:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 net: ip_gre: Accept IFLA_INFO_DATA-less configuration 2020-03-16 17:19:56 -07:00
ipv6 seg6: fix SRv6 L2 tunnels to use IANA-assigned protocol number 2020-03-11 23:49:30 -07:00
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 l2tp: Allow duplicate session creation with UDP 2020-02-04 12:35:49 +01:00
l3mdev ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF 2019-06-23 13:24:17 -07:00
lapb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
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: drop data frames without key on encrypted links 2020-03-26 15:49:24 +01:00
mac802154
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mpls net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
mptcp mptcp: always include dack if possible. 2020-03-05 21:34:42 -08:00
ncsi net/ncsi: Support for multi host mellanox card 2020-01-09 18:36:22 -08:00
netfilter netfilter: nft_chain_nat: inet family is missing module ownership 2020-03-06 18:00:43 +01:00
netlabel netlabel_domainhash.c: Use built-in RCU list checking 2020-02-18 12:44:23 -08:00
netlink netlink: allow extack cookie also for error messages 2020-03-16 02:04:24 -07:00
netrom net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
nfc net: nfc: fix bounds checking bugs on "pipe" 2020-03-05 21:32:42 -08:00
nsh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
openvswitch openvswitch: add missing attribute validation for hash 2020-03-03 13:28:48 -08:00
packet net/packet: tpacket_rcv: avoid a producer race condition 2020-03-15 00:25:25 -07:00
phonet net: Remove redundant BUG_ON() check in phonet_pernet 2020-01-03 12:25:50 -08:00
psample net: psample: fix skb_over_panic 2019-11-26 14:40:13 -08:00
qrtr net: qrtr: Remove receive worker 2020-01-14 18:36:42 -08:00
rds net/rds: Track user mapped pages through special API 2020-02-16 18:37:09 -08:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2019-12-16 10:15:49 +01:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
rxrpc rxrpc: Fix call RCU cleanup using non-bh-safe locks 2020-02-07 11:20:57 +01:00
sched net_sched: cls_route: remove the right filter from hashtable 2020-03-16 01:59:32 -07:00
sctp inet_diag: return classid for all socket types 2020-03-08 21:57:48 -07:00
smc net/smc: cancel event worker during device removal 2020-03-10 15:40:33 -07:00
strparser Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
sunrpc xprtrdma: Fix DMA scatter-gather list mapping imbalance 2020-02-13 15:35:33 -05:00
switchdev
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tipc tipc: add missing attribute validation for MTU property 2020-03-03 13:28:49 -08:00
tls net/tls: Fix to avoid gettig invalid tls record 2020-02-19 16:32:06 -08:00
unix unix: It's CONFIG_PROC_FS not CONFIG_PROCFS 2020-02-27 11:52:35 -08:00
vmw_vsock vsock: fix potential deadlock in transport->release() 2020-02-27 12:03:56 -08:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless nl80211: fix NL80211_ATTR_CHANNEL_WIDTH attribute type 2020-03-25 09:58:43 +01:00
x25 net/x25: fix nonblocking connect 2020-01-09 18:39:33 -08:00
xdp xsk: Publish global consumer pointers when NAPI is finished 2020-02-11 15:51:11 +01:00
xfrm xfrm: interface: use icmp_ndo_send helper 2020-02-13 14:19:00 -08:00
Kconfig net: disable BRIDGE_NETFILTER by default 2020-02-20 15:02:02 -08:00
Makefile mptcp: Add MPTCP socket stubs 2020-01-24 13:44:07 +01:00
compat.c y2038: socket: use __kernel_old_timespec instead of timespec 2019-11-15 14:38:29 +01:00
socket.c socket: fix unused-function warning 2020-01-08 15:02:21 -08:00
sysctl_net.c
…