tree 29c8c7593c1c1e016affe2385f9ac2364d9ec0b3
parent 0b21fa707d1fc1b229020c468fefa0aa46d9e266
author Guillaume Nault <g.nault@alphalink.fr> 1590104368 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1590590517 +0200

l2tp: hold tunnel while handling genl tunnel updates

commit 8c0e421525c9eb50d68e8f633f703ca31680b746 upstream.

We need to make sure the tunnel is not going to be destroyed by
l2tp_tunnel_destruct() concurrently.

Fixes: 309795f4bec2 ("l2tp: Add netlink control API for L2TP")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>