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Dmitry Safonov bc48f46f11 netlink: Don't shift with UB on nlk->ngroups 
[ Upstream commit 61f4b23769f0cc72ae62c9a81cf08f0397d40da8 ]

On i386 nlk->ngroups might be 32 or 0. Which leads to UB, resulting in
hang during boot.
Check for 0 ngroups and use (unsigned long long) as a type to shift.

Fixes: 7acf9d4237c4 ("netlink: Do not subscribe to non-existent groups").
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-09 12:19:27 +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: fix packet loss for broadcasted DHCP packets to a server
2018-05-30 07:49:06 +02:00
bluetooth
Bluetooth: Fix connection if directed advertising and privacy is used
2018-07-03 11:21:35 +02:00
bridge
netfilter: ebtables: reject non-bridge targets
2018-07-22 14:25:54 +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
rtnetlink: add rtnl_link_state check in rtnl_configure_link
2018-07-28 07:45:02 +02:00
dcb
net/dcb: make dcbnl.c explicitly non-modular
2015-10-09 07:52:27 -07:00
dccp
net: dccp: switch rx_tstamp_last_feedback to monotonic clock
2018-07-22 14:25:52 +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: fix parsing multiple options
2018-07-22 14:25:54 +02:00
dsa
net: dsa: Do not suspend/resume closed slave_dev
2018-08-06 16:24:41 +02:00
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
inet: frag: enforce memory limits earlier
2018-08-06 16:24:41 +02:00
ipv6
ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull
2018-07-28 07:45:03 +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: Always verify length of provided sadb_key
2018-06-16 09:54:25 +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: properly handle dev_queue_xmit() return value
2018-05-30 07:49:06 +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
netfilter: nf_queue: augment nfqa_cfg_policy
2018-07-17 11:31:46 +02:00
netlabel
netlabel: If PF_INET6, check sk_buff ip header version
2018-05-30 07:49:17 +02:00
netlink
netlink: Don't shift with UB on nlk->ngroups
2018-08-09 12:19:27 +02:00
netrom
…
nfc
net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
2018-07-22 14:25:54 +02:00
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: fix reserve calculation
2018-06-13 16:15:28 +02:00
phonet
phonet: properly unshare skbs in phonet_rcv()
2016-01-31 11:29:00 -08:00
rds
rds: avoid unenecessary cong_update in loop transport
2018-07-22 14:25:54 +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: blackhole: tell upper qdisc about dropped packets
2018-07-22 14:25:53 +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: skip policies marked as dead while rehashing
2018-07-03 11:21:32 +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
net: socket: fix potential spectre v1 gadget in socketcall
2018-08-06 16:24:42 +02:00
sysctl_net.c
net: Use ns_capable_noaudit() when determining net sysctl permissions
2016-09-15 08:27:50 +02:00