Comment # 17 on bug 1219766 from Javier de San Pedro

I am not sure if it is the same issue (though I started facing the same the
symptoms during the glibc 2.39 migration), but could you try the following ? 

 chmod 0660 /dev/vboxusb/*/* 

From what I gather from the VBoxCreateUSBNode.sh script, it is supposedly
calling mknod with -m 0660 , so no idea why on my system I reproduceably find
that these nodes are created with 0640 instead. Anyway, I don't fully
understand how this could be even remotely caused by glibc.