From: James Chapman <[email protected]>
Date: Mon, 12 Feb 2018 10:11:07 +0000
> Previously, if a tunnel was closed, we called inet_shutdown to mark
> the socket as unconnected such that userspace would get errors and
> then close the socket. This could race with userspace closing the
> socket. Instead, leave userspace to close the socket in its own time
> (our tunnel will be detached anyway).
>
> Fixes: 309795f4be ("l2tp: Add netlink control API for L2TP")
...
> BUG: unable to handle kernel NULL pointer dereference at 00000000000000a0
> IP: __lock_acquire+0x263/0x1630
Ok, all of these are like this.
Please fix this up, put the kernel log message into the message body
and add an appropriate signoff.
Thank you.
