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Phong Tran 78226f6eaa net: usb: asix: init MAC address buffers 
This is for fixing bug KMSAN: uninit-value in ax88772_bind

Tested by
https://groups.google.com/d/msg/syzkaller-bugs/aFQurGotng4/eB_HlNhhCwAJ

Reported-by: syzbot+8a3fc6674bbc3978ed4e@syzkaller.appspotmail.com

syzbot found the following crash on:

HEAD commit:    f75e4cfe kmsan: use kmsan_handle_urb() in urb.c
git tree:       kmsan
console output: https://syzkaller.appspot.com/x/log.txt?x=136d720ea00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=602468164ccdc30a
dashboard link:
https://syzkaller.appspot.com/bug?extid=8a3fc6674bbc3978ed4e
compiler:       clang version 9.0.0 (/home/glider/llvm/clang
06d00afa61eef8f7f501ebdb4e8612ea43ec2d78)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=12788316a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=120359aaa00000

==================================================================
BUG: KMSAN: uninit-value in is_valid_ether_addr
include/linux/etherdevice.h:200 [inline]
BUG: KMSAN: uninit-value in asix_set_netdev_dev_addr
drivers/net/usb/asix_devices.c:73 [inline]
BUG: KMSAN: uninit-value in ax88772_bind+0x93d/0x11e0
drivers/net/usb/asix_devices.c:724
CPU: 0 PID: 3348 Comm: kworker/0:2 Not tainted 5.1.0+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x130/0x2a0 mm/kmsan/kmsan.c:622
  __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:310
  is_valid_ether_addr include/linux/etherdevice.h:200 [inline]
  asix_set_netdev_dev_addr drivers/net/usb/asix_devices.c:73 [inline]
  ax88772_bind+0x93d/0x11e0 drivers/net/usb/asix_devices.c:724
  usbnet_probe+0x10f5/0x3940 drivers/net/usb/usbnet.c:1728
  usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
  generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
  usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_new_device+0x23e5/0x2ff0 drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x48d1/0x7290 drivers/usb/core/hub.c:5432
  process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
  process_scheduled_works kernel/workqueue.c:2331 [inline]
  worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
  kthread+0x4b5/0x4f0 kernel/kthread.c:254
  ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2019-07-02 15:24:48 -07:00
..
appletalk treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
arcnet treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
bonding bonding: Always enable vlan tx offload 2019-06-26 08:56:35 -07:00
caif treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
can SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
dsa net: dsa: mv88e6xxx: wait after reset deactivation 2019-06-29 12:21:18 -07:00
ethernet idr: introduce idr_for_each_entry_continue_ul() 2019-07-01 19:15:46 -07:00
fddi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fjes treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 308 2019-06-05 17:37:04 +02:00
hamradio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 400 2019-06-05 17:37:13 +02:00
hippi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 128 2019-05-30 11:25:13 -07:00
hyperv hv_netvsc: Set probe mode to sync 2019-06-14 19:47:05 -07:00
ieee802154 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
ipvlan Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-07 09:29:14 -07:00
netdevsim netdevsim: Make nsim_num_vf static 2019-05-05 10:48:45 -07:00
phy Revert "net: phylink: set the autoneg state in phylink_phy_change" 2019-06-15 18:10:30 -07:00
plip treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ppp ppp: mppe: Add softdep to arc4 2019-06-22 09:44:23 -04:00
slip treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
team team: Always enable vlan tx offload 2019-06-26 10:14:08 -07:00
usb net: usb: asix: init MAC address buffers 2019-07-02 15:24:48 -07:00
vmxnet3
…
wan treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 426 2019-06-05 17:37:16 +02:00
wimax treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 268 2019-06-05 17:30:29 +02:00
wireless mt76: usb: fix rx A-MSDU support 2019-06-27 19:48:36 +03:00
xen-netback treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
LICENSE.SRC
…
Makefile net: Always descend into dsa/ 2019-05-14 15:20:11 -07:00
Space.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dummy.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
eql.c
…
geneve.c SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
gtp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ifb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
loopback.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
macsec.c macsec: fix checksumming after decryption 2019-07-02 14:12:29 -07:00
macvlan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
macvtap.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
mdio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mii.c
…
net_failover.c
…
netconsole.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
nlmon.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ntb_netdev.c
…
rionet.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sb1000.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sungem_phy.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
tap.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
thunderbolt.c
…
tun.c tun: wake up waitqueues after IFF_UP is set 2019-06-18 10:46:52 -07:00
veth.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
virtio_net.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
vrf.c ipv6: constify rt6_nexthop() 2019-06-26 13:26:08 -07:00
vsockmon.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
vxlan.c vxlan: do not destroy fdb if register_netdevice() is failed 2019-07-01 19:06:02 -07:00
xen-netfront.c
…