An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service. Only Nova deployments configured with SR-IOV are affected. https://bugs.launchpad.net/ossa/+bug/1981813 https://review.opendev.org/c/openstack/nova/+/850003 https://review.opendev.org/c/openstack/nova/+/849985
Created openstack-nova tracking bugs for this issue: Affects: openstack-rdo [bug 2117334]
This issue has been addressed in the following products: Red Hat OpenStack Platform 16.2 Via RHSA-2023:1948 https://access.redhat.com/errata/RHSA-2023:1948
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-37394