[Bug 1813007] Re: Unable to install new flows on compute nodes when having broken security group rules

[OpenStack Infra]

Reviewed:  https://review.openstack.org/640252
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=18c578aa10c19a6befdf1f1510645200f173eb44
Submitter: Zuul
Branch:    master

commit 18c578aa10c19a6befdf1f1510645200f173eb44
Author: Brian Haley <bhaley at redhat.com>
Date:   Thu Feb 28 22:19:16 2019 -0500

    Fix KeyError in OVS firewall
    
    When merging port ranges, the code never assumed the
    conjunction ID might not be present in the set due to
    already being removed.
    
    In this case there were two security groups, both using
    the same remote security group, but the first security
    group does not define a port range and the second one does.
    Or more generally, the first SG port range is a subset
    of the second, as no port-range means the full range.
    
    Change-Id: I17ab643abbd2ec21eda4ae1dfb9abf2d4b0657f2
    Closes-bug: #1813007


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1813007

Title:
  Unable to install new flows on compute nodes when having broken
  security group rules

Status in Ubuntu Cloud Archive:
  Triaged
Status in Ubuntu Cloud Archive pike series:
  Triaged
Status in Ubuntu Cloud Archive queens series:
  Triaged
Status in Ubuntu Cloud Archive rocky series:
  Triaged
Status in Ubuntu Cloud Archive stein series:
  Triaged
Status in neutron:
  Fix Released
Status in OpenStack Security Advisory:
  Incomplete
Status in neutron package in Ubuntu:
  Triaged
Status in neutron source package in Xenial:
  Triaged
Status in neutron source package in Bionic:
  Triaged
Status in neutron source package in Cosmic:
  Triaged
Status in neutron source package in Disco:
  Triaged

Bug description:
  It appears that we have found that neutron-openvswitch-agent appears to have a bug where two security group rules that have two different port ranges that overlap tied to the same parent security group will cause neutron to not be able to configure networks on the compute nodes where those security groups are present.
  Those are the broken security rules: https://pastebin.canonical.com/p/wSy8RSXt85/
  Here is the log when we discovered the issue: https://pastebin.canonical.com/p/wvFKjNWydr/

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