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| author | Eric Dumazet <edumazet@google.com> | 2018-03-05 08:51:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-09 11:19:26 -0500 |
| commit | ca0edb131bdf1e6beaeb2b8289fd6b374b74147d (patch) | |
| tree | b404754c663a0a14cae3a37355f4669f54efad0f /net/tipc/link.c | |
| parent | 9f62c15f28b0d1d746734666d88a79f08ba1e43e (diff) | |
| download | linux-ca0edb131bdf1e6beaeb2b8289fd6b374b74147d.tar.bz2 | |
ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()
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>
Diffstat (limited to 'net/tipc/link.c')
0 files changed, 0 insertions, 0 deletions