Also, the nova api can be used to update metadata on an image, so if you are running the Glance v2 api (not the Glance v1 api), but are running nova then a user can use the nova api to update an image with an invalid kernel_id/ramdisk_id.
Also, the nova api can be used to update metadata on an image, so if you are running the Glance v2 api (not the Glance v1 api), but are running nova then a user can use the nova api to update an image with an invalid kernel_ id/ramdisk_ id.