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77d36398d99f2565c0a8d43a86fd520a82e64bb8
linux/net
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Eric Dumazet 77d36398d9 net: fix uninit-value in __hw_addr_add_ex() 
syzbot complained :

BUG: KMSAN: uninit-value in memcmp+0x119/0x180 lib/string.c:861
CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.16.0+ #82
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676
 memcmp+0x119/0x180 lib/string.c:861
 __hw_addr_add_ex net/core/dev_addr_lists.c:60 [inline]
 __dev_mc_add+0x1c2/0x8e0 net/core/dev_addr_lists.c:670
 dev_mc_add+0x6d/0x80 net/core/dev_addr_lists.c:687
 igmp6_group_added+0x2db/0xa00 net/ipv6/mcast.c:662
 ipv6_dev_mc_inc+0xe9e/0x1130 net/ipv6/mcast.c:914
 addrconf_join_solict net/ipv6/addrconf.c:2078 [inline]
 addrconf_dad_begin net/ipv6/addrconf.c:3828 [inline]
 addrconf_dad_work+0x427/0x2150 net/ipv6/addrconf.c:3954
 process_one_work+0x12c6/0x1f60 kernel/workqueue.c:2113
 worker_thread+0x113c/0x24f0 kernel/workqueue.c:2247
 kthread+0x539/0x720 kernel/kthread.c:239

Fixes: f001fde5ea ("net: introduce a list of device addresses dev_addr_list (v6)")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-07 22:32:31 -04:00
..
6lowpan
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
9p
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2018-02-15 14:29:27 -08:00
802
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
8021q
vlan: also check phy_driver ts_info for vlan's real device
2018-04-01 20:53:50 -04:00
appletalk
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
atm
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
ax25
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
batman-adv
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
bluetooth
Bluetooth: Mark expected switch fall-throughs
2018-04-01 21:43:03 +03:00
bpf
bpf: fix null pointer deref in bpf_prog_test_run_xdp
2018-02-01 07:43:56 -08:00
bridge
net: bridge: disable bridge MTU auto tuning if it was set manually
2018-03-31 22:19:00 -04:00
caif
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
can
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
ceph
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
core
net: fix uninit-value in __hw_addr_add_ex()
2018-04-07 22:32:31 -04:00
dcb
…
dccp
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
decnet
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
dns_resolver
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
dsa
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-03-23 11:31:58 -04:00
ethernet
…
hsr
net: hsr: Convert timers to use timer_setup()
2017-10-25 13:00:27 +09:00
ieee802154
inet: frags: fix ip6frag_low_thresh boundary
2018-04-04 12:04:59 -04:00
ife
MAINTAINERS: Update Yotam's E-mail
2017-11-01 12:19:03 +09:00
ipv4
arp: fix arp_filter on l3slave devices
2018-04-05 22:05:03 -04:00
ipv6
net/ipv6: Increment OUTxxx counters after netfilter hook
2018-04-05 22:23:43 -04:00
iucv
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-03-23 11:31:58 -04:00
kcm
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
key
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
l2tp
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
l3mdev
…
lapb
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
llc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
mac80211
Merge tag 'mac80211-next-for-davem-2018-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2018-03-29 16:23:26 -04:00
mac802154
net/mac802154: disambiguate mac80215 vs mac802154 trace events
2018-03-28 22:55:18 +02:00
mpls
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
ncsi
net/ncsi: check for null return from call to nla_nest_start
2018-03-27 10:38:26 -04:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
netlabel
net/netlabel: Add list_next_rcu() in rcu_dereference().
2017-11-18 10:32:41 +09:00
netlink
netlink: fix uninit-value in netlink_sendmsg
2018-04-07 22:32:31 -04:00
netrom
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-02-19 18:46:11 -05:00
nsh
openvswitch: enable NSH support
2017-11-08 16:12:33 +09:00
openvswitch
ovs: Remove rtnl_lock() from ovs_exit_net()
2018-03-29 13:47:54 -04:00
packet
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
phonet
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
psample
MAINTAINERS: Update Yotam's E-mail
2017-11-01 12:19:03 +09:00
qrtr
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-03-06 01:20:46 -05:00
rds
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
rfkill
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
rose
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
rxrpc
rxrpc: Fix undefined packet handling
2018-04-04 11:04:08 -04:00
sched
net_sched: fix a missing idr_remove() in u32_delete_key()
2018-04-07 12:36:45 -04:00
sctp
sctp: fix unused lable warning
2018-03-29 14:38:27 -04:00
smc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
strparser
strparser: Fix sign of err codes
2018-03-27 11:00:18 -04:00
sunrpc
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
switchdev
net: bridge: Add/del switchdev object on host join/leave
2017-11-10 13:41:40 +09:00
tipc
tipc: Fix namespace violation in tipc_sk_fill_sock_diag
2018-04-04 11:54:35 -04:00
tls
tls: support for Inline tls record
2018-03-31 23:37:32 -04:00
unix
af_unix: remove redundant lockdep class
2018-04-04 11:13:40 -04:00
vmw_vsock
net: make getname() functions return length rather than use int* parameter
2018-02-12 14:15:04 -05:00
wimax
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
wireless
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2018-03-31 23:33:04 -04:00
x25
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
xfrm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
compat.c
net: socket: add __compat_sys_...msg() helpers; remove in-kernel calls to compat syscalls
2018-04-02 20:15:20 +02:00
Kconfig
Merge tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2018-02-01 09:51:57 -08:00
Makefile
ipx: move Novell IPX protocol support into staging
2017-11-28 13:55:00 +01:00
socket.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-04-03 14:04:18 -07:00
sysctl_net.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00