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Johannes Berg 87c807f1ef cfg80211: limit wiphy names to 128 bytes 
commit a7cfebcb7594a24609268f91299ab85ba064bf82 upstream.

There's currently no limit on wiphy names, other than netlink
message size and memory limitations, but that causes issues when,
for example, the wiphy name is used in a uevent, e.g. in rfkill
where we use the same name for the rfkill instance, and then the
buffer there is "only" 2k for the environment variables.

This was reported by syzkaller, which used a 4k name.

Limit the name to something reasonable, I randomly picked 128.

Reported-by: syzbot+230d9e642a85d3fec29c@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-26 08:49:00 +02:00
..
6lowpan 6lowpan: put mcast compression in an own function 2015-10-21 00:49:25 +02:00
9p net/9p: Switch to wait_event_killable() 2017-11-30 08:37:25 +00:00
802
8021q vlan: also check phy_driver ts_info for vlan's real device 2018-04-13 19:50:25 +02:00
appletalk
atm net: atm: Fix potential Spectre v1 2018-05-16 10:06:51 +02:00
ax25 ax25: Fix segfault after sock connection timeout 2017-02-04 09:45:09 +01:00
batman-adv batman-adv: handle race condition for claims between gateways 2018-03-22 09:23:21 +01:00
bluetooth Bluetooth: Send HCI Set Event Mask Page 2 command only when needed 2018-04-13 19:50:21 +02:00
bridge bridge: check iface upper dev when setting master via ioctl 2018-05-26 08:48:46 +02:00
caif net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx 2017-07-05 14:37:14 +02:00
can can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once 2018-01-31 12:06:08 +01:00
ceph libceph: validate con->state at the top of try_write() 2018-05-02 07:53:42 -07:00
core sock_diag: fix use-after-free read in __sk_free 2018-05-26 08:48:58 +02:00
dcb net/dcb: make dcbnl.c explicitly non-modular 2015-10-09 07:52:27 -07:00
dccp dccp: fix tasklet usage 2018-05-26 08:48:46 +02:00
decnet dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock 2018-02-25 11:03:38 +01:00
dns_resolver KEYS: DNS: limit the length of option strings 2018-04-29 07:50:04 +02:00
dsa net: dsa: select NET_SWITCHDEV 2017-11-15 17:13:11 +01:00
ethernet net: introduce device min_header_len 2017-02-18 16:39:27 +01:00
hsr net/hsr: fix a warning message 2015-11-23 14:56:15 -05:00
ieee802154 net: ieee802154: fix net_device reference release too early 2018-04-13 19:50:10 +02:00
ipv4 tcp: purge write queue in tcp_connect_init() 2018-05-26 08:48:58 +02:00
ipv6 net: test tailroom before appending to linear skb 2018-05-26 08:48:57 +02:00
ipx ipx: call ipxitf_put() in ioctl error path 2017-05-25 14:30:13 +02:00
irda irda: do not leak initialized list.dev to userspace 2017-08-30 10:19:21 +02:00
iucv net/iucv: Free memory obtained by kzalloc 2018-03-31 18:12:33 +02:00
key af_key: Fix slab-out-of-bounds in pfkey_compile_policy. 2018-04-13 19:50:01 +02:00
l2tp l2tp: revert "l2tp: fix missing print session offset info" 2018-05-26 08:48:50 +02:00
l3mdev net: Add netif_is_l3_slave 2015-10-07 04:27:43 -07:00
lapb
llc llc: better deal with too small mtu 2018-05-26 08:48:46 +02:00
mac80211 mac80211: Add RX flag to indicate ICV stripped 2018-05-16 10:06:46 +02:00
mac802154 mac802154: llsec: use kzfree 2015-10-21 00:49:24 +02:00
mpls mpls, nospec: Sanitize array index in mpls_label_ok() 2018-03-11 16:19:47 +01:00
netfilter ipvs: fix rtnl_lock lockups caused by start_sync_thread 2018-05-16 10:06:49 +02:00
netlabel netlabel: add address family checks to netlbl_{sock,req}_delattr() 2016-08-20 18:09:22 +02:00
netlink netlink: fix uninit-value in netlink_sendmsg 2018-05-16 10:06:50 +02:00
netrom
nfc NFC: fix device-allocation error return 2017-11-30 08:37:23 +00:00
openvswitch openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found 2018-05-26 08:48:47 +02:00
packet packet: in packet_snd start writing at link layer allocation 2018-05-26 08:48:58 +02:00
phonet phonet: properly unshare skbs in phonet_rcv() 2016-01-31 11:29:00 -08:00
rds rds; Reset rs->rs_bound_addr in rds_add_bound() failure path 2018-04-13 19:50:13 +02:00
rfkill rfkill: gpio: fix memory leak in probe error path 2018-05-16 10:06:51 +02:00
rose
rxrpc rxrpc: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
sched net_sched: fq: take care of throttled flows before reuse 2018-05-26 08:48:47 +02:00
sctp sctp: delay the authentication for the duplicated cookie-echo chunk 2018-05-26 08:48:49 +02:00
sunrpc rpc_pipefs: fix double-dput() 2018-04-24 09:32:11 +02:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-06-24 10:18:16 -07:00
tipc tipc: add policy for TIPC_NLA_NET_ADDR 2018-04-29 07:50:06 +02:00
unix net/unix: don't show information about sockets from other namespaces 2017-11-18 11:11:06 +01:00
vmw_vsock vsock: use new wait API for vsock_stream_sendmsg() 2017-11-30 08:37:19 +00:00
wimax
wireless cfg80211: limit wiphy names to 128 bytes 2018-05-26 08:49:00 +02:00
x25 net: x25: fix one potential use-after-free issue 2018-04-13 19:50:07 +02:00
xfrm xfrm: fix xfrm_do_migrate() with AEAD e.g(AES-GCM) 2018-05-26 08:48:50 +02:00
compat.c net: support compat 64-bit time in {s,g}etsockopt 2018-05-26 08:48:47 +02:00
Kconfig Make DST_CACHE a silent config option 2018-02-25 11:03:37 +01:00
Makefile net: Introduce L3 Master device abstraction 2015-09-29 20:40:32 -07:00
socket.c bpf: introduce BPF_JIT_ALWAYS_ON config 2018-02-03 17:04:24 +01:00
sysctl_net.c net: Use ns_capable_noaudit() when determining net sysctl permissions 2016-09-15 08:27:50 +02:00