tree d631fcc1df3f9070c733db94f5be3a0776758392
parent dbdbc73b44782e22b3b4b6e8b51e7a3d245f3086
author Guillaume Nault <g.nault@alphalink.fr> 1490958149 +0200
committer David S. Miller <davem@davemloft.net> 1491103001 -0700

l2tp: hold session while sending creation notifications

l2tp_session_find() doesn't take any reference on the returned session.
Therefore, the session may disappear while sending the notification.

Use l2tp_session_get() instead and decrement session's refcount once
the notification is sent.

Fixes: 33f72e6f0c67 ("l2tp : multicast notification to the registered listeners")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>