Hi,
Can you include commit:
commit 429a787be6793554ee02aacc7e1f11ebcecc4453
Author: Jens Axboe <axboe@xxxxxx>
Date: Thu Nov 17 12:30:37 2016 -0700
nbd: fix use-after-free of rq/bio in the xmit path
in the 4.9 stable release? Bug doesn't exist in 4.8 or 4.10, but it does
in 4.9 and it's a mistake that the above commit wasn't marked for 4.9
stable when added.
--
Jens Axboe