Because all my computers run oracle virtualbox 6.1.12. on leap 15.1 Comparing with bug 1173944 - Kernel 5.3.18-lp152.20.7 doesn't load VirtualBox kernel driver My kernel (5.3.18-lp152.33.1) use "/etc/uefi/certs/F1C08E27.crt" I suppose that is correct ?