Move initialization of the slc table earlier so it doesn't get accessed before that happens. For details on the issue, see: https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html Reviewed by: cy Obtained from: NetBSD via cy Differential Revision: https://reviews.freebsd.org/D36680