Hi all, I didn't know where to post this. I upgraded from Debian Stretch to Buster about 3 months ago. All was fine until yesterday when I got the message that the drive was full. On inspection I found that sometbing was nesting directories until the drive filled up. One in particular was /usr/bin/X11. It's happening as I speak. Clicking on the link to X11 I got this: /usr/bin/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/ but could have gone further. It will keep going until the drive fills up.
Has anyone else noticed this or heard of this. Smells like a virus to me. Any help appreciated.