Reviewed:  https://review.openstack.org/648003
Committed: 
https://git.openstack.org/cgit/openstack/neutron/commit/?id=569b3fddaba0737f150b75cf7ec9cb4137b3991b
Submitter: Zuul
Branch:    stable/rocky

commit 569b3fddaba0737f150b75cf7ec9cb4137b3991b
Author: Brian Haley <[email protected]>
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
    (cherry picked from commit 18c578aa10c19a6befdf1f1510645200f173eb44)

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

Title:
  [SRU] Unable to install new flows on compute nodes when having broken
  security group rules (CVE-2019-10876)

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