l += [KconfigCheck('self_protection', 'defconfig', 'BUG', 'y')]
l += [KconfigCheck('self_protection', 'defconfig', 'SLUB_DEBUG', 'y')]
l += [KconfigCheck('self_protection', 'defconfig', 'THREAD_INFO_IN_TASK', 'y')]
- gcc_plugins_support_is_set = KconfigCheck('self_protection', 'defconfig', 'GCC_PLUGINS', 'y')
- l += [gcc_plugins_support_is_set]
iommu_support_is_set = KconfigCheck('self_protection', 'defconfig', 'IOMMU_SUPPORT', 'y')
l += [iommu_support_is_set] # is needed for mitigating DMA attacks
l += [OR(KconfigCheck('self_protection', 'defconfig', 'STACKPROTECTOR', 'y'),
l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_LIST', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_VIRTUAL', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_SG', 'y')]
- l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_CREDENTIALS', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'STATIC_USERMODEHELPER', 'y')] # needs userspace support
l += [KconfigCheck('self_protection', 'kspp', 'SCHED_CORE', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY', 'y')]
cfi_clang_is_set = KconfigCheck('self_protection', 'kspp', 'CFI_CLANG', 'y')
cfi_clang_permissive_not_set = KconfigCheck('self_protection', 'kspp', 'CFI_PERMISSIVE', 'is not set')
+ l += [OR(KconfigCheck('self_protection', 'kspp', 'DEBUG_CREDENTIALS', 'y'),
+ VersionCheck((6, 6, 8)))] # DEBUG_CREDENTIALS was dropped in v6.6.8
l += [OR(KconfigCheck('self_protection', 'kspp', 'DEBUG_NOTIFIERS', 'y'),
AND(cfi_clang_is_set,
- cfi_clang_permissive_not_set))]
+ cfi_clang_permissive_not_set,
+ cc_is_clang))]
l += [OR(KconfigCheck('self_protection', 'kspp', 'SCHED_STACK_END_CHECK', 'y'),
vmap_stack_is_set)]
kfence_is_set = KconfigCheck('self_protection', 'kspp', 'KFENCE', 'y')
l += [kfence_is_set]
- l += [AND(KconfigCheck('self_protection', 'my', 'KFENCE_SAMPLE_INTERVAL', 'is not off'),
+ l += [AND(KconfigCheck('self_protection', 'a13xp0p0v', 'KFENCE_SAMPLE_INTERVAL', 'is not off'),
kfence_is_set)]
randstruct_is_set = OR(KconfigCheck('self_protection', 'kspp', 'RANDSTRUCT_FULL', 'y'),
KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y'))
l += [AND(KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_PAGESPAN', 'is not set'),
hardened_usercopy_is_set)] # this debugging for HARDENED_USERCOPY is not needed for security
l += [AND(KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_LATENT_ENTROPY', 'y'),
- gcc_plugins_support_is_set)]
+ cc_is_gcc)]
l += [OR(KconfigCheck('self_protection', 'kspp', 'MODULE_SIG', 'y'),
modules_not_set)]
l += [OR(KconfigCheck('self_protection', 'kspp', 'MODULE_SIG_ALL', 'y'),
modules_not_set)]
l += [OR(KconfigCheck('self_protection', 'kspp', 'MODULE_SIG_SHA512', 'y'),
- KconfigCheck('self_protection', 'my', 'MODULE_SIG_SHA3_512', 'y'),
+ KconfigCheck('self_protection', 'a13xp0p0v', 'MODULE_SIG_SHA3_512', 'y'),
modules_not_set)]
l += [OR(KconfigCheck('self_protection', 'kspp', 'MODULE_SIG_FORCE', 'y'),
modules_not_set)] # refers to LOCKDOWN
ubsan_bounds_is_set)]
if arch in ('X86_64', 'ARM64', 'X86_32'):
stackleak_is_set = KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y')
- l += [AND(stackleak_is_set, gcc_plugins_support_is_set)]
+ l += [AND(stackleak_is_set,
+ cc_is_gcc)]
l += [AND(KconfigCheck('self_protection', 'kspp', 'STACKLEAK_METRICS', 'is not set'),
stackleak_is_set,
- gcc_plugins_support_is_set)]
+ cc_is_gcc)]
l += [AND(KconfigCheck('self_protection', 'kspp', 'STACKLEAK_RUNTIME_DISABLE', 'is not set'),
stackleak_is_set,
- gcc_plugins_support_is_set)]
+ cc_is_gcc)]
l += [KconfigCheck('self_protection', 'kspp', 'RANDOMIZE_KSTACK_OFFSET_DEFAULT', 'y')]
if arch in ('X86_64', 'ARM64'):
- l += [cfi_clang_is_set]
+ l += [AND(cfi_clang_is_set,
+ cc_is_clang)]
l += [AND(cfi_clang_permissive_not_set,
- cfi_clang_is_set)]
+ cfi_clang_is_set,
+ cc_is_clang)]
if arch in ('X86_64', 'X86_32'):
l += [KconfigCheck('self_protection', 'kspp', 'HW_RANDOM_TPM', 'y')]
l += [KconfigCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')]
# 'self_protection', 'clipos'
l += [KconfigCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set')]
- # 'self_protection', 'my'
- l += [KconfigCheck('self_protection', 'my', 'LIST_HARDENED', 'y')]
- l += [KconfigCheck('self_protection', 'my', 'RANDOM_KMALLOC_CACHES', 'y')]
+ # 'self_protection', 'a13xp0p0v'
+ l += [KconfigCheck('self_protection', 'a13xp0p0v', 'LIST_HARDENED', 'y')]
+ l += [KconfigCheck('self_protection', 'a13xp0p0v', 'RANDOM_KMALLOC_CACHES', 'y')]
# 'security_policy'
if arch in ('X86_64', 'ARM64', 'X86_32'):
l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_SELINUX_BOOTPARAM', 'is not set')]
l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_SELINUX_DEVELOP', 'is not set')]
l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_WRITABLE_HOOKS', 'is not set')] # refers to SECURITY_SELINUX_DISABLE
- l += [KconfigCheck('security_policy', 'my', 'SECURITY_SELINUX_DEBUG', 'is not set')]
- l += [OR(KconfigCheck('security_policy', 'my', 'SECURITY_SELINUX', 'y'),
- KconfigCheck('security_policy', 'my', 'SECURITY_APPARMOR', 'y'),
- KconfigCheck('security_policy', 'my', 'SECURITY_SMACK', 'y'),
- KconfigCheck('security_policy', 'my', 'SECURITY_TOMOYO', 'y'))] # one of major LSMs implementing MAC
+ l += [KconfigCheck('security_policy', 'a13xp0p0v', 'SECURITY_SELINUX_DEBUG', 'is not set')]
+ l += [OR(KconfigCheck('security_policy', 'a13xp0p0v', 'SECURITY_SELINUX', 'y'),
+ KconfigCheck('security_policy', 'a13xp0p0v', 'SECURITY_APPARMOR', 'y'),
+ KconfigCheck('security_policy', 'a13xp0p0v', 'SECURITY_SMACK', 'y'),
+ KconfigCheck('security_policy', 'a13xp0p0v', 'SECURITY_TOMOYO', 'y'))] # one of major LSMs implementing MAC
# 'cut_attack_surface', 'defconfig'
l += [KconfigCheck('cut_attack_surface', 'defconfig', 'SECCOMP', 'y')]
l += [KconfigCheck('cut_attack_surface', 'lockdown', 'KPROBES', 'is not set')] # refers to LOCKDOWN
l += [bpf_syscall_not_set] # refers to LOCKDOWN
- # 'cut_attack_surface', 'my'
- l += [KconfigCheck('cut_attack_surface', 'my', 'MMIOTRACE', 'is not set')] # refers to LOCKDOWN (permissive)
- l += [KconfigCheck('cut_attack_surface', 'my', 'LIVEPATCH', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'IP_DCCP', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'IP_SCTP', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'FTRACE', 'is not set')] # refers to LOCKDOWN
- l += [KconfigCheck('cut_attack_surface', 'my', 'VIDEO_VIVID', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'INPUT_EVBUG', 'is not set')] # Can be used as a keylogger
- l += [KconfigCheck('cut_attack_surface', 'my', 'KGDB', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'CORESIGHT', 'is not set')]
- l += [KconfigCheck('cut_attack_surface', 'my', 'XFS_SUPPORT_V4', 'is not set')]
- l += [OR(KconfigCheck('cut_attack_surface', 'my', 'TRIM_UNUSED_KSYMS', 'y'),
+ # 'cut_attack_surface', 'a13xp0p0v'
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'MMIOTRACE', 'is not set')] # refers to LOCKDOWN (permissive)
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'LIVEPATCH', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'IP_DCCP', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'IP_SCTP', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'FTRACE', 'is not set')] # refers to LOCKDOWN
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'VIDEO_VIVID', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'INPUT_EVBUG', 'is not set')] # Can be used as a keylogger
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'KGDB', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'CORESIGHT', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'XFS_SUPPORT_V4', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'MODULE_FORCE_LOAD', 'is not set')]
+ l += [KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'BLK_DEV_WRITE_MOUNTED', 'is not set')]
+ l += [OR(KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'TRIM_UNUSED_KSYMS', 'y'),
modules_not_set)]
- l += [KconfigCheck('cut_attack_surface', 'my', 'MODULE_FORCE_LOAD', 'is not set')]
+
# 'harden_userspace'
if arch == 'ARM64':
if arch in ('ARM', 'X86_32'):
l += [KconfigCheck('harden_userspace', 'defconfig', 'VMSPLIT_3G', 'y')]
l += [KconfigCheck('harden_userspace', 'clipos', 'COREDUMP', 'is not set')]
- l += [KconfigCheck('harden_userspace', 'my', 'ARCH_MMAP_RND_BITS', 'MAX')] # 'MAX' value is refined using ARCH_MMAP_RND_BITS_MAX
+ l += [KconfigCheck('harden_userspace', 'a13xp0p0v', 'ARCH_MMAP_RND_BITS', 'MAX')] # 'MAX' value is refined using ARCH_MMAP_RND_BITS_MAX
+ if arch == 'X86_64':
+ l += [KconfigCheck('harden_userspace', 'a13xp0p0v', 'X86_USER_SHADOW_STACK', 'y')]
def add_cmdline_checks(l, arch):
AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
CmdlineCheck('self_protection', 'defconfig', 'kpti', 'is not set')))]
l += [OR(CmdlineCheck('self_protection', 'defconfig', 'ssbd', 'kernel'),
- CmdlineCheck('self_protection', 'my', 'ssbd', 'force-on'),
+ CmdlineCheck('self_protection', 'a13xp0p0v', 'ssbd', 'force-on'),
AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
CmdlineCheck('self_protection', 'defconfig', 'ssbd', 'is not set')))]
l += [OR(CmdlineCheck('self_protection', 'defconfig', 'rodata', 'full'),
if arch in ('X86_64', 'X86_32'):
l += [CmdlineCheck('self_protection', 'clipos', 'iommu', 'force')]
- # 'self_protection', 'my'
- l += [OR(CmdlineCheck('self_protection', 'my', 'kfence.sample_interval', 'is not off'),
- AND(KconfigCheck('self_protection', 'my', 'KFENCE_SAMPLE_INTERVAL', 'is not off'),
- CmdlineCheck('self_protection', 'my', 'kfence.sample_interval', 'is not set')))]
+ # 'self_protection', 'a13xp0p0v'
+ l += [OR(CmdlineCheck('self_protection', 'a13xp0p0v', 'kfence.sample_interval', 'is not off'),
+ AND(KconfigCheck('self_protection', 'a13xp0p0v', 'KFENCE_SAMPLE_INTERVAL', 'is not off'),
+ CmdlineCheck('self_protection', 'a13xp0p0v', 'kfence.sample_interval', 'is not set')))]
# 'cut_attack_surface', 'defconfig'
if arch in ('X86_64', 'X86_32'):
AND(KconfigCheck('cut_attack_surface', 'kspp', 'LEGACY_VSYSCALL_NONE', 'y'),
CmdlineCheck('cut_attack_surface', 'kspp', 'vsyscall', 'is not set')))]
l += [OR(CmdlineCheck('cut_attack_surface', 'kspp', 'vdso32', '0'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso32', '1'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso32', '1'),
AND(KconfigCheck('cut_attack_surface', 'kspp', 'COMPAT_VDSO', 'is not set'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso32', 'is not set')))] # the vdso32 parameter must not be 2
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso32', 'is not set')))] # the vdso32 parameter must not be 2
if arch == 'X86_32':
l += [OR(CmdlineCheck('cut_attack_surface', 'kspp', 'vdso32', '0'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso', '0'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso32', '1'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso', '1'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso', '0'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso32', '1'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso', '1'),
AND(KconfigCheck('cut_attack_surface', 'kspp', 'COMPAT_VDSO', 'is not set'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso32', 'is not set'),
- CmdlineCheck('cut_attack_surface', 'my', 'vdso', 'is not set')))] # the vdso and vdso32 parameters must not be 2
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso32', 'is not set'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'vdso', 'is not set')))] # the vdso and vdso32 parameters must not be 2
# 'cut_attack_surface', 'grsec'
# The cmdline checks compatible with the kconfig options disabled by grsecurity...
l += [OR(CmdlineCheck('cut_attack_surface', 'grsec', 'debugfs', 'off'),
KconfigCheck('cut_attack_surface', 'grsec', 'DEBUG_FS', 'is not set'))] # ... the end
- # 'cut_attack_surface', 'my'
- l += [CmdlineCheck('cut_attack_surface', 'my', 'sysrq_always_enabled', 'is not set')]
+ # 'cut_attack_surface', 'a13xp0p0v'
+ l += [CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'sysrq_always_enabled', 'is not set')]
+ l += [OR(CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'bdev_allow_write_mounted', '0'),
+ AND(KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'BLK_DEV_WRITE_MOUNTED', 'is not set'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'bdev_allow_write_mounted', 'is not set')))]
if arch == 'X86_64':
- l += [OR(CmdlineCheck('cut_attack_surface', 'my', 'ia32_emulation', '0'),
+ l += [OR(CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'ia32_emulation', '0'),
KconfigCheck('cut_attack_surface', 'kspp', 'IA32_EMULATION', 'is not set'),
- AND(KconfigCheck('cut_attack_surface', 'my', 'IA32_EMULATION_DEFAULT_DISABLED', 'y'),
- CmdlineCheck('cut_attack_surface', 'my', 'ia32_emulation', 'is not set')))]
+ AND(KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'IA32_EMULATION_DEFAULT_DISABLED', 'y'),
+ CmdlineCheck('cut_attack_surface', 'a13xp0p0v', 'ia32_emulation', 'is not set')))]
# 'harden_userspace'
l += [CmdlineCheck('harden_userspace', 'defconfig', 'norandmaps', 'is not set')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.dmesg_restrict', '1')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.perf_event_paranoid', '3')] # with a custom patch, see https://lwn.net/Articles/696216/
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.kexec_load_disabled', '1')]
- l += [SysctlCheck('cut_attack_surface', 'kspp', 'user.max_user_namespaces', '0')]
+ l += [SysctlCheck('cut_attack_surface', 'kspp', 'user.max_user_namespaces', '0')] # may break the upower daemon in Ubuntu
l += [SysctlCheck('cut_attack_surface', 'kspp', 'dev.tty.ldisc_autoload', '0')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.unprivileged_bpf_disabled', '1')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.kptr_restrict', '2')]
projects / kconfig-hardened-check.git / blobdiff