@Splat
I am all for a 'Heads Up' about potential problems, but you are taking it over the top.
You join MR in 2006, make 90+ posts between then and now and tell Kovid that he must drop everything and
secure the Linux distribution for maybe the 1 in 5000+ of those users that just
might be running on a system that that possibility could exist
I think Kovid's list should forewarn those few affected users that the choice of system to run Calibre on should be considered.