tree eeca3ead29ffaf135c31d9a11b29b082766b22cc
parent 0382a25af3c771a8e4d5e417d1834cbe28c2aaac
author Guillaume Nault <g.nault@alphalink.fr> 1480421385 +0100
committer David S. Miller <davem@davemloft.net> 1480533247 -0500

l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()

Socket must be held while under the protection of the l2tp lock; there
is no guarantee that sk remains valid after the read_unlock_bh() call.

Same issue for l2tp_ip and l2tp_ip6.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>