I was trying to run VirtualBox on OS X when I got the error:
Failed to open a session for the virtual machine tinyXP. Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE). Unknown error creating VM (VERR_SUPLIB_WORLD_WRITABLE).
According to this article http://www.virtualbox.org/ticket/8410, it is because the permissions on my
/Applications folder are too broad. I checked, and I was actually very surprised to learn that the folder was in fact world-readable / world-writable.
drwxrwxrwx+ 164 root admin 5576 Jun 26 22:27 Applications
So before I go changing them, I'm wondering if that is normal or if somehow they got changed?