Check the nosmap and nosmep cmdline parameters

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

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 8922fdbe5f2d23e0d3199792fe6285ff71fa8790..e62fad6890ca0484dfd93d24d33f782b953b1993 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -29,7 +29,6 @@
 #           ssbd=force-on
 #
 #    Should NOT be set:
-#           nokaslr
 #           sysrq_always_enabled
 #           arm64.nobti
 #           arm64.nopauth
@@ -402,8 +401,9 @@ def add_kconfig_checks(l, arch):
     l += [KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_DMA_STRICT', 'y')]
     l += [KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_PASSTHROUGH', 'is not set')] # true if IOMMU_DEFAULT_DMA_STRICT is set
     l += [KconfigCheck('self_protection', 'kspp', 'ZERO_CALL_USED_REGS', 'y')]
-    randstruct_is_set = KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y')
-    l += [AND(randstruct_is_set, cc_is_gcc)]
+    randstruct_is_set = OR(KconfigCheck('self_protection', 'kspp', 'RANDSTRUCT_FULL', 'y'),
+                           KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y'))
+    l += [randstruct_is_set]
     hardened_usercopy_is_set = KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY', 'y')
     l += [hardened_usercopy_is_set]
     l += [AND(KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_FALLBACK', 'is not set'),
@@ -461,13 +461,16 @@ def add_kconfig_checks(l, arch):
     l += [KconfigCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set')]
     l += [KconfigCheck('self_protection', 'clipos', 'RANDOM_TRUST_BOOTLOADER', 'is not set')]
     l += [KconfigCheck('self_protection', 'clipos', 'RANDOM_TRUST_CPU', 'is not set')]
-    l += [AND(KconfigCheck('self_protection', 'clipos', 'GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set'),
+    l += [AND(KconfigCheck('self_protection', 'clipos', 'RANDSTRUCT_PERFORMANCE', 'is not set'),
+              KconfigCheck('self_protection', 'clipos', 'GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set'),
               randstruct_is_set)]
     if arch in ('X86_64', 'ARM64', 'X86_32'):
         l += [AND(KconfigCheck('self_protection', 'clipos', 'STACKLEAK_METRICS', 'is not set'),
-                  stackleak_is_set)]
+                  stackleak_is_set,
+                  cc_is_gcc)]
         l += [AND(KconfigCheck('self_protection', 'clipos', 'STACKLEAK_RUNTIME_DISABLE', 'is not set'),
-                  stackleak_is_set)]
+                  stackleak_is_set,
+                  cc_is_gcc)]
     if arch in ('X86_64', 'X86_32'):
         l += [AND(KconfigCheck('self_protection', 'clipos', 'INTEL_IOMMU_DEFAULT_ON', 'y'),
                   iommu_support_is_set)]
@@ -486,7 +489,7 @@ def add_kconfig_checks(l, arch):
         l += [AND(KconfigCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'),
                   iommu_support_is_set)]
     if arch == 'ARM64':
-        l += [KconfigCheck('self_protection', 'my', 'SHADOW_CALL_STACK', 'y')] # depends on clang, maybe it's alternative to STACKPROTECTOR_STRONG
+        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]
@@ -499,6 +502,7 @@ def add_kconfig_checks(l, arch):
     if arch == 'ARM':
         l += [KconfigCheck('security_policy', 'kspp', 'SECURITY', 'y')] # and choose your favourite LSM
     l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_YAMA', 'y')]
+    l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_LANDLOCK', 'y')]
     l += [KconfigCheck('security_policy', 'kspp', 'SECURITY_SELINUX_DISABLE', 'is not set')]
     l += [KconfigCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM', 'y')]
     l += [KconfigCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM_EARLY', 'y')]
@@ -698,6 +702,7 @@ def add_cmdline_checks(l, arch):
              AND(KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_PASSTHROUGH', 'is not set'),
                  CmdlineCheck('self_protection', 'kspp', 'iommu.passthrough', 'is not set')))]
     # The cmdline checks compatible with the kconfig recommendations of the KSPP project...
+    l += [CmdlineCheck('self_protection', 'kspp', 'nokaslr', 'is not set')]
     l += [OR(CmdlineCheck('self_protection', 'kspp', 'hardened_usercopy', '1'),
              AND(KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY', 'y'),
                  CmdlineCheck('self_protection', 'kspp', 'hardened_usercopy', 'is not set')))]
@@ -714,6 +719,10 @@ def add_cmdline_checks(l, arch):
     # 'self_protection', 'clipos'
     l += [CmdlineCheck('self_protection', 'clipos', 'page_alloc.shuffle', '1')]
 
+    # 'self_protection', 'my'
+    l += [CmdlineCheck('self_protection', 'my', 'nosmep', 'is not set')]
+    l += [CmdlineCheck('self_protection', 'my', 'nosmap', 'is not set')]
+
     # 'cut_attack_surface', 'kspp'
     if arch == 'X86_64':
         l += [OR(CmdlineCheck('cut_attack_surface', 'kspp', 'vsyscall', 'none'),