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linux/net/ieee802154
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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