** Also affects: neutron/kilo
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1451576
Title:
subnetpool allocation not ensuring non-overlapping cidrs
Status in neutron:
In Progress
Status in neutron kilo series:
New
Bug description:
_get_allocated_cidrs[1] locks only allocated subnets in a subnetpool
(with mysql/postgresql at least) which ensures we won't allocate a
cidr overlapping with existent cidrs but nothing disallows a
concurrent subnet allocation to create a subnet in the same
subnetpool.
[1]:
https://github.com/openstack/neutron/blob/5962d825a6c98225c51bc6dd304b5c1ac89035etef/neutron/ipam/subnet_alloc.py#L40-L44
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