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kernel-hardening-checker
Commit 7935d6f0 by Alexander Popov
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Add ARM support

parent 2430a7ed
Showing with 21 additions and 5 deletions
kconfig-hardened-check.py
......@@ -36,7 +36,7 @@ import re
debug_mode = False # set it to True to print the unknown options from the config
supported_archs = [ 'X86_64', 'X86_32', 'ARM64' ]
supported_archs = [ 'X86_64', 'X86_32', 'ARM64', 'ARM' ]
checklist = []
......@@ -140,7 +140,6 @@ def construct_checklist(arch):
OptCheck('DEBUG_RODATA', 'y', 'defconfig', 'self_protection'))) # before v4.11
checklist.append(OR(OptCheck('STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection'), \
OptCheck('CC_STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection')))
checklist.append(OptCheck('THREAD_INFO_IN_TASK', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('SLUB_DEBUG', 'y', 'defconfig', 'self_protection'))
checklist.append(OR(OptCheck('STRICT_MODULE_RWX', 'y', 'defconfig', 'self_protection'), \
OptCheck('DEBUG_SET_MODULE_RONX', 'y', 'defconfig', 'self_protection'), \
......@@ -156,9 +155,15 @@ def construct_checklist(arch):
checklist.append(OptCheck('SYN_COOKIES', 'y', 'defconfig', 'self_protection')) # another reason?
if debug_mode or arch == 'ARM64':
checklist.append(OptCheck('UNMAP_KERNEL_AT_EL0', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('REFCOUNT_FULL', 'y', 'defconfig', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64':
checklist.append(OptCheck('VMAP_STACK', 'y', 'defconfig', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
checklist.append(OptCheck('THREAD_INFO_IN_TASK', 'y', 'defconfig', 'self_protection'))
if debug_mode or arch == 'ARM':
checklist.append(OptCheck('VMSPLIT_3G', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('CPU_SW_DOMAIN_PAN', 'y', 'defconfig', 'self_protection'))
if debug_mode or arch == 'ARM64' or arch == 'ARM':
checklist.append(OptCheck('REFCOUNT_FULL', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('BUG_ON_DATA_CORRUPTION', 'y', 'kspp', 'self_protection'))
checklist.append(OptCheck('DEBUG_WX', 'y', 'kspp', 'self_protection'))
......@@ -192,11 +197,13 @@ def construct_checklist(arch):
checklist.append(OptCheck('HIGHMEM64G', 'y', 'kspp', 'self_protection'))
checklist.append(OptCheck('X86_PAE', 'y', 'kspp', 'self_protection'))
if debug_mode or arch == 'ARM64':
checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '32768', 'kspp', 'self_protection'))
checklist.append(OptCheck('ARM64_SW_TTBR0_PAN', 'y', 'kspp', 'self_protection'))
checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'kspp', 'self_protection'))
if debug_mode or arch == 'ARM64' or arch == 'ARM':
checklist.append(OptCheck('SYN_COOKIES', 'y', 'kspp', 'self_protection')) # another reason?
checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '32768', 'kspp', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
checklist.append(OptCheck('GCC_PLUGIN_STACKLEAK', 'y', 'my', 'self_protection'))
checklist.append(OptCheck('LOCK_DOWN_KERNEL', 'y', 'my', 'self_protection')) # remember about LOCK_DOWN_MANDATORY
checklist.append(OptCheck('SLUB_DEBUG_ON', 'y', 'my', 'self_protection'))
......@@ -209,17 +216,24 @@ def construct_checklist(arch):
if debug_mode or arch == 'X86_32':
checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'my', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
checklist.append(OptCheck('SECURITY', 'y', 'defconfig', 'security_policy'))
if debug_mode or arch == 'ARM':
checklist.append(OptCheck('SECURITY', 'y', 'kspp', 'security_policy'))
checklist.append(OptCheck('SECURITY_YAMA', 'y', 'kspp', 'security_policy'))
checklist.append(OptCheck('SECURITY_SELINUX_DISABLE', 'is not set', 'kspp', 'security_policy'))
checklist.append(OptCheck('SECCOMP', 'y', 'defconfig', 'cut_attack_surface'))
checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'defconfig', 'cut_attack_surface'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'defconfig', 'cut_attack_surface'), \
devmem_not_set)) # refers to LOCK_DOWN_KERNEL
checklist.append(OR(OptCheck('IO_STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \
devmem_not_set)) # refers to LOCK_DOWN_KERNEL
if debug_mode or arch == 'ARM':
checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \
devmem_not_set)) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'kspp', 'cut_attack_surface'))
checklist.append(OptCheck('DEVKMEM', 'is not set', 'kspp', 'cut_attack_surface'))
......@@ -235,6 +249,8 @@ def construct_checklist(arch):
checklist.append(OptCheck('IA32_EMULATION', 'is not set', 'kspp', 'cut_attack_surface'))
checklist.append(OptCheck('X86_X32', 'is not set', 'kspp', 'cut_attack_surface'))
checklist.append(OptCheck('MODIFY_LDT_SYSCALL', 'is not set', 'kspp', 'cut_attack_surface'))
if debug_mode or arch == 'ARM':
checklist.append(OptCheck('OABI_COMPAT', 'is not set', 'kspp', 'cut_attack_surface'))
checklist.append(OptCheck('X86_PTDUMP', 'is not set', 'grsecurity', 'cut_attack_surface'))
checklist.append(OptCheck('ZSMALLOC_STAT', 'is not set', 'grsecurity', 'cut_attack_surface'))
......@@ -274,7 +290,7 @@ def construct_checklist(arch):
if debug_mode or arch == 'X86_64' or arch == 'ARM64':
checklist.append(OptCheck('ARCH_MMAP_RND_BITS', '32', 'my', 'userspace_protection'))
if debug_mode or arch == 'X86_32':
if debug_mode or arch == 'X86_32' or arch == 'ARM':
checklist.append(OptCheck('ARCH_MMAP_RND_BITS', '16', 'my', 'userspace_protection'))
# checklist.append(OptCheck('LKDTM', 'm', 'my', 'feature_test'))
......
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