Add the ARM64_E0PD check

[kconfig-hardened-check.git] / kconfig_hardened_check / __init__.py

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index fa7cc3537fbae67355b3d8d886aea6e1a4786801..7523590a5c907992feec21fc2db75a708d2f6a95 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -387,6 +387,7 @@ def add_kconfig_checks(l, arch):
         l += [KconfigCheck('self_protection', 'defconfig', 'ARM64_PAN', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'ARM64_EPAN', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'UNMAP_KERNEL_AT_EL0', 'y')]
+        l += [KconfigCheck('self_protection', 'defconfig', 'ARM64_E0PD', 'y')]
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'HARDEN_EL2_VECTORS', 'y'),
                  AND(KconfigCheck('self_protection', 'defconfig', 'RANDOMIZE_BASE', 'y'),
                      VersionCheck((5, 9))))] # HARDEN_EL2_VECTORS was included in RANDOMIZE_BASE in v5.9
@@ -426,6 +427,7 @@ def add_kconfig_checks(l, arch):
     l += [KconfigCheck('self_protection', 'kspp', 'ZERO_CALL_USED_REGS', 'y')]
     l += [KconfigCheck('self_protection', 'kspp', 'HW_RANDOM_TPM', 'y')]
     l += [KconfigCheck('self_protection', 'kspp', 'STATIC_USERMODEHELPER', 'y')] # needs userspace support
+    l += [KconfigCheck('self_protection', 'kspp', 'SCHED_CORE', 'y')]
     randstruct_is_set = OR(KconfigCheck('self_protection', 'kspp', 'RANDSTRUCT_FULL', 'y'),
                            KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y'))
     l += [randstruct_is_set]
@@ -484,8 +486,12 @@ def add_kconfig_checks(l, arch):
                   stackleak_is_set,
                   gcc_plugins_support_is_set)]
         l += [KconfigCheck('self_protection', 'kspp', 'RANDOMIZE_KSTACK_OFFSET_DEFAULT', 'y')]
+    if arch in ('X86_64', 'ARM64'):
+        cfi_clang_is_set = KconfigCheck('self_protection', 'kspp', 'CFI_CLANG', 'y')
+        l += [cfi_clang_is_set]
+        l += [AND(KconfigCheck('self_protection', 'kspp', 'CFI_PERMISSIVE', 'is not set'),
+                  cfi_clang_is_set)]
     if arch in ('X86_64', 'X86_32'):
-        l += [KconfigCheck('self_protection', 'kspp', 'SCHED_CORE', 'y')]
         l += [KconfigCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')]
         l += [AND(KconfigCheck('self_protection', 'kspp', 'INTEL_IOMMU_DEFAULT_ON', 'y'),
                   iommu_support_is_set)]
@@ -500,6 +506,8 @@ def add_kconfig_checks(l, arch):
                   iommu_support_is_set)]
     if arch == 'ARM64':
         l += [KconfigCheck('self_protection', 'kspp', 'ARM64_SW_TTBR0_PAN', 'y')]
+        l += [KconfigCheck('self_protection', 'kspp', 'SHADOW_CALL_STACK', 'y')]
+        l += [KconfigCheck('self_protection', 'kspp', 'KASAN_HW_TAGS', 'y')]
     if arch == 'X86_32':
         l += [KconfigCheck('self_protection', 'kspp', 'PAGE_TABLE_ISOLATION', 'y')]
         l += [KconfigCheck('self_protection', 'kspp', 'HIGHMEM64G', 'y')]
@@ -510,15 +518,6 @@ def add_kconfig_checks(l, arch):
     # 'self_protection', 'clipos'
     l += [KconfigCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set')]
 
-    # 'self_protection', 'my'
-    if arch == 'ARM64':
-        l += [KconfigCheck('self_protection', 'my', 'SHADOW_CALL_STACK', 'y')] # maybe it's alternative to STACKPROTECTOR_STRONG
-        l += [KconfigCheck('self_protection', 'my', 'KASAN_HW_TAGS', 'y')]
-        cfi_clang_is_set = KconfigCheck('self_protection', 'my', 'CFI_CLANG', 'y')
-        l += [cfi_clang_is_set]
-        l += [AND(KconfigCheck('self_protection', 'my', 'CFI_PERMISSIVE', 'is not set'),
-                  cfi_clang_is_set)]
-
     # 'security_policy'
     if arch in ('X86_64', 'ARM64', 'X86_32'):
         l += [KconfigCheck('security_policy', 'defconfig', 'SECURITY', 'y')] # and choose your favourite LSM