Created attachment 840044 [details]
vbox-setup.log

After a fresh install of 15.1 and 15.2 and after adding kernel package,
installing oracle virtualbox Version 6.1.12 r139181 (Qt5.12.7) give error on
leap 15.2 :

#
# ---
#
:~ # uname -a
Linux ASUS-G75VW-JC 5.3.18-lp152.26-default #1 SMP Mon Jun 29 14:58:38 UTC 2020
(2a0430f) x86_64 x86_64 x86_64 GNU/Linux
#
# ---
#
:~/Downloads> sudo zypper in 
VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64.rpm
[sudo] password for root: 
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following NEW package is going to be installed:
  VirtualBox-6.1

1 new package to install.
Overall download size: 83.1 MiB. Already cached: 0 B. After the operation,
additional 195.6 MiB will be used.
Continue? [y/n/v/...? shows all options] (y): 
Retrieving package VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64           
                                                                               
                       (1/1),  83.1 MiB (195.6 MiB unpacked)
VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64.rpm:
    Header V4 DSA/SHA1 Signature, key ID 98ab5139: NOKEY
    V4 DSA/SHA1 Signature, key ID 98ab5139: NOKEY

Looking for gpg key ID 98AB5139 in cache /var/cache/zypp/pubkeys.
Repository Plain RPM files cache does not define additional 'gpgkey=' URLs.
VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64 (Plain RPM files cache):
Signature verification failed [4-Signatures public key is not available]
Abort, retry, ignore? [a/r/i] (a): i

Checking for file conflicts:
.........................................................................................................................................................................................[done]
(1/1) Installing: VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64
..................................................................................................................................................[done]
Additional rpm output:
warning:
/var/cache/zypper/RPMS/VirtualBox-6.1-6.1.12_139181_openSUSE150-1.x86_64.rpm:
Header V4 DSA/SHA1 Signature, key ID 98ab5139: NOKEY

Creating group 'vboxusers'. VM users must be member of that group!

Created symlink /etc/systemd/system/multi-user.target.wants/vboxdrv.service ->
/usr/lib/systemd/system/vboxdrv.service.
Created symlink
/etc/systemd/system/multi-user.target.wants/vboxballoonctrl-service.service ->
/usr/lib/systemd/system/vboxballoonctrl-service.service.
Created symlink
/etc/systemd/system/multi-user.target.wants/vboxautostart-service.service ->
/usr/lib/systemd/system/vboxautostart-service.service.
Created symlink
/etc/systemd/system/multi-user.target.wants/vboxweb-service.service ->
/usr/lib/systemd/system/vboxweb-service.service.
vboxdrv.sh: failed: Look at /var/log/vbox-setup.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.  If your system is using EFI Secure Boot you may need to sign the
kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load
them. Please see your Linux system's documentation for more information.
#
# ---
#
:~ # modinfo -n vboxdrv
modinfo: ERROR: Module vboxdrv not found.
#
# ---
#
:~ # find /lib -name "vboxdrv*"
/lib/modules/5.3.18-lp152.26-default/misc/vboxdrv.ko
#
# ---
#

ASk if you need more appropriate information.

Any help is welcome