/usr/share/kernel-package/ruleset/arches/ is in kernel-package 12.036+nmu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kernel-package/ruleset/arches/ChangeLog
/usr/share/kernel-package/ruleset/arches/README.txt
/usr/share/kernel-package/ruleset/arches/alpha.mk
/usr/share/kernel-package/ruleset/arches/amd64.mk
/usr/share/kernel-package/ruleset/arches/arm.mk
/usr/share/kernel-package/ruleset/arches/armeb.mk
/usr/share/kernel-package/ruleset/arches/hppa.mk
/usr/share/kernel-package/ruleset/arches/i386.mk
/usr/share/kernel-package/ruleset/arches/ia64.mk
/usr/share/kernel-package/ruleset/arches/m32r.mk
/usr/share/kernel-package/ruleset/arches/m68k.mk
/usr/share/kernel-package/ruleset/arches/mips.mk
/usr/share/kernel-package/ruleset/arches/mipsel.mk
/usr/share/kernel-package/ruleset/arches/powerpc.mk
/usr/share/kernel-package/ruleset/arches/s390.mk
/usr/share/kernel-package/ruleset/arches/sparc.mk
/usr/share/kernel-package/ruleset/arches/uml.mk
/usr/share/kernel-package/ruleset/arches/what_is_ppc_called_today.mk