OK here, testing existing MSW764 bit guest

Host: kernel-5.10.56-desktop-1.mga8, Plasma, Nvidia-current 

Installed:
 - virtualbox-kernel-5.10.56-desktop-1.mga8-6.1.26-1.mga8.x86_64
 - virtualbox-6.1.26-1.mga8.x86_64
 - dkms-virtualbox-6.1.26-1.mga8.x86_64

Reboot

[morgan@svarten ~]$ uname -a
Linux svarten.tribun 5.10.56-desktop-1.mga8 #1 SMP Wed Aug 4 11:32:59 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
[morgan@svarten ~]$ dkms status
virtualbox, 6.1.26-1.mga8, 5.13.8-desktop-1.mga8, x86_64: installed 
nvidia-current, 460.84-1.mga8.nonfree, 5.10.56-desktop-1.mga8, x86_64: installed 
nvidia-current, 460.84-1.mga8.nonfree, 5.13.8-desktop-1.mga8, x86_64: installed 
virtualbox, 6.1.26-1.mga8, 5.10.56-desktop-1.mga8, x86_64: installed-binary from 5.10.56-desktop-1.mga8
virtualbox, 6.1.24-1.mga8, 5.13.8-desktop-1.mga8, x86_64: installed-binary from 5.13.8-desktop-1.mga8

Per bug Bug 18962, I install Oracle extension pack manually:

Went to
  http://download.virtualbox.org/virtualbox/6.1.26
And fetched
  Oracle_VM_VirtualBox_Extension_Pack-6.1.26.vbox-extpack 
And then
  $ sudo VBoxManage extpack install --replace that-extension-pack

Booted my virtual MSW7 64 bit guest.
In VirtualBox Drives dropdown menu of that guest window, I choose to insert guest extension pack, Fetch from internet, and it did.  Rebooted guest.

Then performed same tests as I use to:
  Dynamically resizing guest window by mouse
  Shared clipboard, bidirectional
  Shared folders bidirectional copying
  Drag a file from host Dolphin to guest Explorer
  USB2: flash stick and Brother label printer
  Sound, Internet, performance: playing video in Firefox while host is heavily loaded.

CC: (none) => fri

i5-2500, Intel graphics, 64-bit Plasma host.

No installation issues. Ran Windows XP and Windows 7 guests, and updated guest additions. Ran two Mga8-64 guests, updated guest additions. All look OK, access to shared folders OK.

I did not try to create a new guest (it's almost my bedtime), but all tests I've done so far look OK.

CC: (none) => andrewsfarm

On real hardware, M8, Plasma, 64-bit

Package(s) under test:
virtualbox

M8 i586   Xfce   upating works just fine as a Vbox client
M8 x86_64 Plasma upating works just fine as a Vbox client

install from updates testing:

dkms-virtualbox virtualbox virtualbox-guest-additions
x11-driver-video-vboxvideo kernel-desktop-devel-latest virtualbox-kernel-desktop-latest

The following 7 packages are going to be installed:

- dkms-virtualbox-6.1.26-1.mga8.x86_64
- glibc-2.32-18.mga8.x86_64
- glibc-devel-2.32-18.mga8.x86_64
- virtualbox-6.1.26-1.mga8.x86_64
- virtualbox-guest-additions-6.1.26-1.mga8.x86_64
- virtualbox-kernel-5.10.56-desktop-1.mga8-6.1.26-1.mga8.x86_64
- virtualbox-kernel-desktop-latest-6.1.26-1.mga8.x86_64

Reboots to a working desktp

Package dkms-virtualbox-6.1.26-1.mga8.x86_64 is already installed
Package virtualbox-6.1.26-1.mga8.x86_64 is already installed
Package virtualbox-guest-additions-6.1.26-1.mga8.x86_64 is already installed
Package x11-driver-video-vboxvideo-1.0.0-6.mga8.x86_64 is already installed
Package kernel-desktop-devel-latest-5.10.56-1.mga8.x86_64 is already installed
Package virtualbox-kernel-desktop-latest-6.1.26-1.mga8.x86_64 is already installed

M8 i586   Xfce   upating works just fine as a Vbox client ( glibc updated )
M8 x86_64 Plasma upating works just fine as a Vbox client ( glibc updated )

CC: (none) => wilcal.int

Looks OK. Validating.

Keywords: (none) => validated_update
CC: (none) => sysadmin-bugs
Whiteboard: (none) => MGA8-64-OK

An update for this issue has been pushed to the Mageia Updates repository.

https://advisories.mageia.org/MGAA-2021-0170.html

Status: NEW => RESOLVED
Resolution: (none) => FIXED