yep, the system does not ask for permissions when copying a kext
when opening the installation software, it prompts, but not during installation.
the result of the kext is not loaded by the system
sudo kmutil load -p /Library/Extensions/VoodooHDA.kext
Password:
Authenticating extension failed: Kext org.voodoo.driver.VoodooHDA v3.3.4 in executable kext bundle org.voodoo.driver.VoodooHDA at /private/var/db/KernelExtensionManagement/Staging/org.voodoo.driver.VoodooHDA.JYwVNJ/VoodooHDA.kext:
Authenticating extension failed: Bad code signature