Virtualbox: vboxdrv.sh: failed & Run 'make oldconfig && make prepare'

After updating to ubuntu 18.04 i had to reinstall virtualbox:

# dpkg -i virtualbox-5.2_5.2.10-122088~Debian~stretch_amd64.deb 
Vormals nicht ausgewähltes Paket virtualbox-5.2 wird gewählt.
(Lese Datenbank ... 378316 Dateien und Verzeichnisse sind derzeit installiert.)
Vorbereitung zum Entpacken von virtualbox-5.2_5.2.10-122088~Debian~stretch_amd64.deb ...
Entpacken von virtualbox-5.2 (5.2.10-122088~Debian~stretch) ...
virtualbox-5.2 (5.2.10-122088~Debian~stretch) wird eingerichtet ...
addgroup: Die Gruppe »vboxusers« existiert bereits als Systemgruppe. Programmende.
vboxdrv.sh: failed: Look at /var/log/vbox-install.log to find out what went wrong.

There were problems setting up VirtualBox.  To re-start the set-up process, run
  /sbin/vboxconfig
as root.
Trigger für systemd (237-3ubuntu10) werden verarbeitet ...
Trigger für ureadahead (0.100.0-20) werden verarbeitet ...
Trigger für gnome-menus (3.13.3-11ubuntu1) werden verarbeitet ...
Trigger für bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu1) werden verarbeitet ...
Rebuilding /usr/share/applications/bamf-2.index...
Trigger für desktop-file-utils (0.23-1ubuntu3) werden verarbeitet ...
Trigger für mime-support (3.60ubuntu1) werden verarbeitet ...
Trigger für hicolor-icon-theme (0.17-2) werden verarbeitet ...
Trigger für shared-mime-info (1.9-2) werden verarbeitet ...

But this just failed with the following error (i am running my own kernel because of suspend to disk issues) inside /var/log/vbox-install.log:

test -e include/generated/autoconf.h -a -e include/config/auto.conf || (        \
echo >&2;                            \
echo >&2 "  ERROR: Kernel configuration is invalid.";        \
echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";    \
echo >&2 ;                            \
/bin/false)
mkdir -p /lib/modules/4.17.0-rc3/misc

and at the end:

/tmp/vbox.0/linux/VBoxPci-linux.c:92:40: error: implicit declaration of function ‘pci_get_bus_and_slot’; did you mean ‘pci_get_domain_bus_and_slot’? [-Werror=implicit-function-declaration]
 # define PCI_DEV_GET_SLOT(bus, devfn)  pci_get_bus_and_slot(bus, devfn)
                                        ^
/tmp/vbox.0/linux/VBoxPci-linux.c:397:15: note: in expansion of macro ‘PCI_DEV_GET_SLOT’
     pPciDev = PCI_DEV_GET_SLOT(uBus, uDevFn);
               ^~~~~~~~~~~~~~~~
/tmp/vbox.0/linux/VBoxPci-linux.c:397:13: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     pPciDev = PCI_DEV_GET_SLOT(uBus, uDevFn);
             ^
/tmp/vbox.0/linux/VBoxPci-linux.c: In function ‘vboxPciOsDevInit’:
/tmp/vbox.0/linux/VBoxPci-linux.c:648:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
         pPciDev = PCI_DEV_GET_SLOT((pIns->HostPciAddress) >> 8,
                 ^
cc1: some warnings being treated as errors
scripts/Makefile.build:312: recipe for target '/tmp/vbox.0/linux/VBoxPci-linux.o' failed
make[2]: *** [/tmp/vbox.0/linux/VBoxPci-linux.o] Error 1
Makefile:1568: recipe for target '_module_/tmp/vbox.0' failed
make[1]: *** [_module_/tmp/vbox.0] Error 2
/tmp/vbox.0/Makefile.include.footer:101: recipe for target 'vboxpci' failed
make: *** [vboxpci] Error 2

Starting virtualbox shows:

The virtual machine 'Docker on Alpine LInux' has terminated unexpectedly during startup with exit code 1 (0x1).

Fehlercode:NS_ERROR_FAILURE (0x80004005)
Komponente:MachineWrap
Interface:IMachine {85cd948e-a71f-4289-281e-0ca7ad48cd89}

There are many postings out there how to fix this.
But is easier than everything written there:

Change to /lib/modules/4.17.0-rc3/misc and type:

modprobe vboxdrv
modprobe vboxnetadp
modprobe vboxnetflt

And after that everything works like expected.