Eric Dumazet f6cdb675ca ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event() ...

[ Upstream commit ca0edb131b ]

A tun device type can trivially be set to arbitrary value using
TUNSETLINK ioctl().

Therefore, lowpan_device_event() must really check that ieee802154_ptr
is not NULL.

Fixes: 2c88b5283f ("ieee802154: 6lowpan: remove check on null")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@osg.samsung.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-03-31 18:10:40 +02:00

..

6lowpan

ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()

2018-03-31 18:10:40 +02:00

core.c

ieee802154: add netns support

2016-07-08 12:20:57 +02:00

core.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

header_ops.c

ieee802154: change needed headroom/tailroom

2015-09-22 11:51:20 +02:00

ieee802154.h

ieee802154: add nl802154 framework

2014-11-09 19:50:29 +01:00

Kconfig

nl802154: add support for security layer

2015-09-30 13:16:44 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

netlink.c

genetlink: mark families as __ro_after_init

2016-10-27 16:16:09 -04:00

nl802154.c

netlink: pass extended ACK struct where available

2017-04-13 13:58:22 -04:00

nl802154.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nl_policy.c

ieee802154: mac802154: remove FSF address

2014-10-25 08:07:30 +02:00

nl-mac.c

ieee802154: use nla_put_u64_64bit()

2016-04-25 15:09:11 -04:00

nl-phy.c

ieee802154: check device type

2016-11-30 12:33:07 +01:00

rdev-ops.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

socket.c

net: ieee802154: fix net_device reference release too early

2017-05-23 20:05:15 +02:00

sysfs.c

cfg802154: add PM hooks

2015-07-23 17:10:49 +02:00

sysfs.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace.c

ieee802154: Add trace events for rdev->ops

2015-04-30 18:48:09 +02:00

trace.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00