This bug was initially created as a copy of Bug #1705563
Description of problem:
Due to a race condition in the Cinder API, concurrent requests to attach the same non-multi-attach volume to the same instance can succeed.
Note to for self verification steps see:
Awaiting newer build, insufficient to verify:
14 -p 2019-09-06.1
openstack-cinder-13.0.5-5.el7ost.noarch < fixed-in
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.