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Anant Thazhemadam 785ef2d0c5 net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key() 
commit 3dc289f8f139997f4e9d3cfccf8738f20d23e47b upstream.

In nl80211_parse_key(), key.idx is first initialized as -1.
If this value of key.idx remains unmodified and gets returned, and
nl80211_key_allowed() also returns 0, then rdev_del_key() gets called
with key.idx = -1.
This causes an out-of-bounds array access.

Handle this issue by checking if the value of key.idx after
nl80211_parse_key() is called and return -EINVAL if key.idx < 0.

Cc: stable@vger.kernel.org
Reported-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Tested-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Link: https://lore.kernel.org/r/20201007035401.9522-1-anant.thazhemadam@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 09:46:22 +02:00
..
6lowpan
6lowpan: Off by one handling ->nexthdr
2020-01-29 10:21:42 +01:00
9p
net/9p: validate fds in p9_fd_open
2020-08-21 10:52:56 +02:00
802
…
8021q
vlan: fix memory leak in vlan_dev_set_egress_priority
2020-01-12 11:22:52 +01:00
appletalk
appletalk: Set error code if register_snap_client failed
2019-12-21 10:35:03 +01:00
atm
atm: fix a memory leak of vcc->user_back
2020-10-01 11:11:55 +02:00
ax25
AX.25: Prevent integer overflows in connect and sendmsg
2020-07-31 16:43:16 +02:00
batman-adv
batman-adv: mcast/TT: fix wrongly dropped or rerouted packets
2020-10-01 11:11:57 +02:00
bluetooth
Bluetooth: Handle Inquiry Cancel error after Inquiry Complete
2020-10-01 11:11:55 +02:00
bridge
netfilter: nft_reject_bridge: enable reject with bridge vlan
2020-06-03 08:12:13 +02:00
caif
net: caif: Add a missing rcu_read_unlock() in caif_flow_cb
2018-09-05 09:18:34 +02:00
can
can: purge socket error queue on sock destruct
2019-07-10 09:56:33 +02:00
ceph
libceph: handle an empty authorize reply
2019-03-23 08:44:18 +01:00
core
neigh_stat_seq_next() should increase position index
2020-10-01 11:11:51 +02:00
dcb
net: dcb: For wild-card lookups, use priority -1, not 0
2018-09-19 22:48:58 +02:00
dccp
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:11:36 +02:00
decnet
decnet: fix DN_IFREQ_SIZE
2019-12-05 15:27:07 +01:00
dns_resolver
KEYS: DNS: fix parsing multiple options
2018-07-22 14:25:54 +02:00
dsa
net: dsa: slave: fix of-node leak and phy priority
2020-05-10 10:26:09 +02:00
ethernet
net: add annotations on hh->hh_len lockless accesses
2020-01-12 11:22:45 +01:00
hsr
hsr: set .netnsok flag
2020-04-02 19:02:34 +02:00
ieee802154
nl802154: add missing attribute validation for dev_type
2020-03-20 09:06:19 +01:00
ipv4
rt_cpu_seq_next should increase position index
2020-10-01 11:11:51 +02:00
ipv6
ipv6: check skb->protocol before lookup for nexthop
2020-08-21 10:53:07 +02:00
ipx
ipx: call ipxitf_put() in ioctl error path
2017-05-25 14:30:13 +02:00
irda
irda: Free skb on irda_accept error path.
2020-05-10 10:25:58 +02:00
iucv
net/af_iucv: always register net_device notifier
2020-01-29 10:21:45 +01:00
key
af_key: pfkey_dump needs parameter validation
2020-10-01 11:11:49 +02:00
l2tp
l2tp: remove skb_dst_set() from l2tp_xmit_skb()
2020-07-22 09:10:03 +02:00
l3mdev
net: Add netif_is_l3_slave
2015-10-07 04:27:43 -07:00
lapb
lapb: fixed leak of control-blocks.
2019-06-22 08:18:25 +02:00
llc
llc: make sure applications use ARPHRD_ETHER
2020-07-22 09:10:03 +02:00
mac80211
mac80211: fix misplaced while instead of if
2020-08-21 10:53:05 +02:00
mac802154
net: mac802154: tx: expand tailroom if necessary
2018-09-09 20:04:32 +02:00
mpls
net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
2020-05-20 08:11:37 +02:00
netfilter
netfilter: ctnetlink: add a range check for l3/l4 protonum
2020-10-14 09:46:21 +02:00
netlabel
netlabel: cope with NULL catmap
2020-05-20 08:11:52 +02:00
netlink
genetlink: remove genl_bind
2020-07-22 09:10:03 +02:00
netrom
net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node
2020-05-02 17:20:33 +02:00
nfc
net/nfc/rawsock.c: add CAP_NET_RAW check.
2020-08-21 10:53:03 +02:00
openvswitch
net: openvswitch: fix csum updates for MPLS actions
2020-05-20 08:11:45 +02:00
packet
packet: fix data-race in fanout_flow_is_huge()
2020-01-29 10:21:50 +01:00
phonet
phonet: fix building with clang
2019-03-23 08:44:34 +01:00
rds
rds: Prevent kernel-infoleak in rds_notify_queue_get()
2020-08-21 10:52:53 +02:00
rfkill
rfkill: Fix incorrect check to avoid NULL pointer dereference
2020-01-12 11:22:49 +01:00
rose
net: rose: fix a possible stack overflow
2019-04-03 06:23:25 +02:00
rxrpc
rxrpc: Fix sendmsg() returning EPIPE due to recvmsg() returning ENODATA
2020-07-31 16:43:16 +02:00
sched
net: sched: export __netdev_watchdog_up()
2020-06-29 20:07:57 -04:00
sctp
sctp: not disable bh in the whole sctp_get_port_local()
2020-09-12 11:45:33 +02:00
sunrpc
SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()'
2020-10-01 11:11:54 +02:00
switchdev
switchdev: pass pointer to fib_info instead of copy
2016-06-24 10:18:16 -07:00
tipc
tipc: use skb_unshare() instead in tipc_buf_append()
2020-10-01 11:11:49 +02:00
unix
skbuff: fix a data race in skb_queue_len()
2020-10-01 11:11:52 +02:00
vmw_vsock
vsock: fix timeout in vsock_accept()
2020-06-11 09:21:39 +02:00
wimax
net:wimax: Fix doucble word "the the" in networking.xml
2015-08-09 22:43:52 -07:00
wireless
net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
2020-10-14 09:46:22 +02:00
x25
net/x25: Fix null-ptr-deref in x25_disconnect
2020-08-21 10:52:53 +02:00
xfrm
xfrm: fix a NULL-ptr deref in xfrm_local_error
2020-06-03 08:12:13 +02:00
compat.c
net/compat: Add missing sock updates for SCM_RIGHTS
2020-08-26 10:27:07 +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
net: Set fput_needed iff FDPUT_FPUT is set
2020-08-21 10:53:03 +02:00
sysctl_net.c
net: Use ns_capable_noaudit() when determining net sysctl permissions
2016-09-15 08:27:50 +02:00