Since tty sessions are usually separated by different users, how would
they have the same one and yet need something like this?

Also, why not put this in the tty config section?

The normal attack use case people argue about is a rogue process on the
users machine sitting there waiting until the user has logged in to a
remote machine and is idle and then doing stuff.

Attackers of course don't bother doing that because it's easier to get
the user to run a different ssh client instead.

Alan
--
To unsubscribe from this list: send the line "unsubscribe linux-security-module" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html