GHSA-v725-c588-h936 OpenStack Nova Changing vnic_type breaks compute service restart

• PyPI nova: < 23.2.2 → fixed in 23.2.2 • PyPI nova: >= 24.0.0, < 24.1.2 → fixed in 24.1.2 • PyPI nova: >= 25.0.0, < 25.0.2 → fixed in 25.0.2

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.