The gettext module does not entirely cleanup after itself in its GRUB_MOD_FINI() leaving a few variables hooks in place. It is not possible to unload gettext module because normal module depends on it. Though fix the issues for completeness. Fixes: CVE-2025-0622 Reported-by: B Horn <b@horn.uk> Signed-off-by: B Horn <b@horn.uk> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>