Red Hat Bugzilla – Bug 1581729
[OSP13] Neutron denied running dhcp_release6
Last modified: 2018-06-27 09:58:54 EDT
Description of problem: CI Testing showed this new AVC: type=AVC msg=audit(1527075675.414:18010): avc: denied { name_bind } for pid=4521 comm="dhcp_release6" src=546 scontext=system_u:system_r:neutron_t:s0 tcontext=system_u:object_r:dhcpc_port_t:s0 tclass=udp_socket Version-Release number of selected component (if applicable): 0.8.14-10.el7ost How reproducible: Unknown
dhcp_release6 is something neutron could call to try and clean-up stale leases, so it should be allowed. Since it's not something that would happen often, and it's IPv6 which doesn't have as small a subnet size as IPv4, I wouldn't necessarily consider it a blocker for GA. And it is probably just causing a runtime error in the dhcp-agent, which should be caught correctly.
May be related to #1547669 (now dhcp_release6 binary is found and can be called)
Yes, Bernard is correct, dhcp_release6 was added in dnsmasq version 2.76, http://www.thekelleys.org.uk/dnsmasq/CHANGELOG - so that script is new to any OSP release that gets it.
Linky: bug 1547669
AVC regression tests for this passed; the AVC does not appear with current openstack-selinux-0.8.14-11.el7ost and later
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. https://access.redhat.com/errata/RHEA-2018:2086