tree dd8532dc1bf1c4b8955c40ce22216e0b28746916
parent 523e6d7f31868172536d63280a6d10d2d5a94e95
author Guillaume Nault <g.nault@alphalink.fr> 1590104367 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1590590516 +0200

l2tp: hold tunnel while processing genl delete command

commit bb0a32ce4389e17e47e198d2cddaf141561581ad upstream.

l2tp_nl_cmd_tunnel_delete() needs to take a reference on the tunnel, to
prevent it from being concurrently freed by l2tp_tunnel_destruct().

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>