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Johannes Berg 1bd17a737c nl80211: validate beacon head 
commit f88eb7c0d0 upstream.

We currently don't validate the beacon head, i.e. the header,
fixed part and elements that are to go in front of the TIM
element. This means that the variable elements there can be
malformed, e.g. have a length exceeding the buffer size, but
most downstream code from this assumes that this has already
been checked.

Add the necessary checks to the netlink policy.

Cc: stable@vger.kernel.org
Fixes: ed1b6cc7f8 ("cfg80211/nl80211: add beacon settings")
Link: https://lore.kernel.org/r/1569009255-I7ac7fbe9436e9d8733439eab8acbbd35e55c74ef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-11 18:21:44 +02:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-07-06 12:32:12 +02:00
9p 9p: Transport error uninitialized 2019-10-11 18:21:12 +02:00
802
8021q vlan: disable SIOCSHWTSTAMP in container 2019-05-16 19:41:30 +02:00
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-10-05 13:09:31 +02:00
atm net: atm: Fix potential Spectre v1 vulnerabilities 2019-04-27 09:36:30 +02:00
ax25 ax25: enforce CAP_NET_RAW for raw sockets 2019-10-05 13:09:32 +02:00
batman-adv batman-adv: Only read OGM2 tvlv_len after buffer len check 2019-09-21 07:16:59 +02:00
bluetooth Revert "Bluetooth: validate BLE connection interval updates" 2019-10-01 08:25:59 +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 netfilter: ebtables: Fix argument order to ADD_COUNTER 2019-09-21 07:16:54 +02:00
caif Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
can can: gw: Fix error path of cgw_module_init 2019-08-29 08:28:30 +02:00
ceph libceph: fix PG split vs OSD (re)connect race 2019-08-29 08:28:50 +02:00
core net: Unpublish sk from sk_reuseport_cb before call_rcu 2019-10-07 18:57:22 +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: Check existence of .port_mdb_add callback before calling it 2019-08-25 10:48:03 +02:00
ethernet
hsr net/hsr: fix possible crash in add_timer() 2019-03-19 13:12:38 +01:00
ieee802154 ieee802154: enforce CAP_NET_RAW for raw sockets 2019-10-05 13:09:32 +02:00
ife
ipv4 udp: only do GSO if # of segs > 1 2019-10-07 18:57:24 +02:00
ipv6 udp: only do GSO if # of segs > 1 2019-10-07 18:57:24 +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 compat_ioctl: pppoe: fix PPPOEIOCSFWD handling 2019-08-09 17:52:34 +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 {nl,mac}80211: fix interface combinations on crypto controlled devices 2019-09-16 08:21:42 +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 netfilter: nf_tables: allow lookups in dynamic sets 2019-10-11 18:21:16 +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 attrs checks in netlink interface 2019-10-07 18:57:28 +02:00
nsh nsh: set mac len based on inner packet 2018-07-12 16:55:29 -07:00
openvswitch openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC 2019-10-05 13:09:29 +02:00
packet net/packet: fix race in tpacket_snd() 2019-08-25 10:48:04 +02:00
phonet phonet: fix building with clang 2019-03-23 20:09:51 +01:00
psample net: sched: act_sample: fix psample group handling on overwrite 2019-09-10 10:33:38 +01:00
qrtr net: qrtr: Stop rx_worker before freeing node 2019-10-05 13:09:27 +02:00
rds net/rds: Fix error handling in rds_ib_add_one() 2019-10-07 18:57:24 +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 local refcounting 2019-08-29 08:28:59 +02:00
sched sch_cbq: validate TCA_CBQ_WRROPT to avoid crash 2019-10-07 18:57:26 +02:00
sctp sctp: use transport pf_retrans in sctp_do_8_2_transport_strike 2019-09-19 09:09:32 +02:00
smc net/smc: make sure EPOLLOUT is raised 2019-09-06 10:22:06 +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: fix unlimited bundling of small messages 2019-10-07 18:57:25 +02:00
tls net: tls, fix sk_write_space NULL write when tx disabled 2019-09-06 10:22:04 +02:00
unix missing barriers in some of unix_sock ->addr and ->path accesses 2019-03-19 13:12:41 +01:00
vmw_vsock vsock: Fix a lockdep warning in __vsock_release() 2019-10-07 18:57:23 +02:00
wimax wimax: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
wireless nl80211: validate beacon head 2019-10-11 18:21:44 +02:00
x25 net/x25: fix a race in x25_bind() 2019-03-19 13:12:40 +01:00
xdp xdp: unpin xdp umem pages in error path 2019-09-21 07:16:57 +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
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