CVE-2022-37394 Information

Description

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.

Reference

https://bugs.launchpad.net/ossa/+bug/1981813 https://review.opendev.org/c/openstack/nova/+/850003 https://review.opendev.org/c/openstack/nova/+/849985