diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-03-05 08:51:03 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-31 18:12:34 +0200 |
| commit | 41462e8f610c3b0056e89fbc2a2d1b37416466aa (patch) | |
| tree | 083405db847139d780f4271fc3fbe4e931c45c97 /net/ax25 | |
| parent | bd01dd8b1036a6d55247e0a04a09e376c6d4bd9a (diff) | |
ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()
[ Upstream commit ca0edb131bdf1e6beaeb2b8289fd6b374b74147d ]
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: 2c88b5283f60d ("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>
Diffstat (limited to 'net/ax25')
0 files changed, 0 insertions, 0 deletions