Guillaume Nault 414fb21bd5 l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
[ Upstream commit a3c18422a4b4e108bcf6a2328f48867e1003fd95 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-11-10 07:41:38 -08:00
..
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