# iommu.passthrough=0
# iommu.strict=1
# slub_debug=FZ (slow)
-# init_on_free=1 (since v5.3, otherwise slub_debug=P and page_poison=1)
# loadpin.enforce=1
# debugfs=no-mount (or off if possible)
#
def add_cmdline_checks(l, arch):
# Calling the CmdlineCheck class constructor:
# CmdlineCheck(reason, decision, name, expected)
+ # Don't add CmdlineChecks in add_kconfig_checks() to avoid wrong results
+ # when the tool doesn't check the cmdline.
l += [OR(CmdlineCheck('self_protection', 'kspp', 'init_on_alloc', '1'),
AND(KconfigCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y'),
CmdlineCheck('self_protection', 'kspp', 'init_on_alloc', 'is not set')))]
+ l += [OR(CmdlineCheck('self_protection', 'kspp', 'init_on_free', '1'),
+ AND(KconfigCheck('self_protection', 'kspp', 'INIT_ON_FREE_DEFAULT_ON', 'y'),
+ CmdlineCheck('self_protection', 'kspp', 'init_on_free', 'is not set')),
+ AND(CmdlineCheck('self_protection', 'kspp', 'page_poison', '1'),
+ KconfigCheck('self_protection', 'kspp', 'PAGE_POISONING_ZERO', 'y'),
+ CmdlineCheck('self_protection', 'kspp', 'slub_debug', 'P')))]
l += [OR(CmdlineCheck('self_protection', 'kspp', 'slab_nomerge'),
AND(KconfigCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set'),
CmdlineCheck('self_protection', 'kspp', 'slab_merge', 'is not set')))] # option presence check
CmdlineCheck('self_protection', 'kspp', 'randomize_kstack_offset', 'is not set')))]
if arch in ('X86_64', 'X86_32'):
l += [CmdlineCheck('self_protection', 'kspp', 'pti', 'on')]
+
+ if arch == 'X86_64':
+ l += [OR(CmdlineCheck('cut_attack_surface', 'kspp', 'vsyscall', 'none'),
+ AND(KconfigCheck('cut_attack_surface', 'kspp', 'LEGACY_VSYSCALL_NONE', 'y'),
+ CmdlineCheck('cut_attack_surface', 'kspp', 'vsyscall', 'is not set')))]
+
# TODO: add other