X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kernel_hardening_checker%2Fchecks.py;h=7ac45b16ee72532aac4275fe530bc72fe85d07b9;hb=3288e37484b5a364a96d0ca83f7948421d4212b8;hp=ef5a514a8953250e36ca8b58d2f44a13ff2ef542;hpb=04d2b75c9cafe1aa300040b0028e41e1367a539b;p=kconfig-hardened-check.git

diff --git a/kernel_hardening_checker/checks.py b/kernel_hardening_checker/checks.py
index ef5a514..7ac45b1 100644
--- a/kernel_hardening_checker/checks.py
+++ b/kernel_hardening_checker/checks.py
@@ -65,11 +65,9 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
     if arch in ('X86_64', 'ARM64', 'ARM'):
         l += [vmap_stack_is_set]
     if arch in ('X86_64', 'X86_32'):
-        l += [KconfigCheck('self_protection', 'defconfig', 'SPECULATION_MITIGATIONS', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'DEBUG_WX', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'WERROR', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'X86_MCE', 'y')]
-        l += [KconfigCheck('self_protection', 'defconfig', 'RETPOLINE', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'SYN_COOKIES', 'y')] # another reason?
         microcode_is_set = KconfigCheck('self_protection', 'defconfig', 'MICROCODE', 'y')
         l += [microcode_is_set] # is needed for mitigating CPU bugs
@@ -89,16 +87,26 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
                  cpu_sup_intel_not_set)]
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'X86_MCE_AMD', 'y'),
                  cpu_sup_amd_not_set)]
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'CPU_MITIGATIONS', 'y'),
+                 KconfigCheck('self_protection', 'defconfig', 'SPECULATION_MITIGATIONS', 'y'))]
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_RETPOLINE', 'y'),
+                 KconfigCheck('self_protection', 'defconfig', 'RETPOLINE', 'y'))]
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_RFDS', 'y'),
+                 cpu_sup_intel_not_set)]
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_SPECTRE_BHI', 'y'),
+                 cpu_sup_intel_not_set)]
     if arch in ('ARM64', 'ARM'):
         l += [KconfigCheck('self_protection', 'defconfig', 'HW_RANDOM_TPM', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'IOMMU_DEFAULT_DMA_STRICT', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'IOMMU_DEFAULT_PASSTHROUGH', 'is not set')] # true if IOMMU_DEFAULT_DMA_STRICT is set
         l += [KconfigCheck('self_protection', 'defconfig', 'STACKPROTECTOR_PER_TASK', 'y')]
     if arch == 'X86_64':
-        l += [KconfigCheck('self_protection', 'defconfig', 'PAGE_TABLE_ISOLATION', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'RANDOMIZE_MEMORY', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'X86_KERNEL_IBT', 'y')]
-        l += [OR(KconfigCheck('self_protection', 'defconfig', 'CPU_SRSO', 'y'),
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_PAGE_TABLE_ISOLATION', 'y'),
+                 KconfigCheck('self_protection', 'defconfig', 'PAGE_TABLE_ISOLATION', 'y'))]
+        l += [OR(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_SRSO', 'y'),
+                 KconfigCheck('self_protection', 'defconfig', 'CPU_SRSO', 'y'),
                  cpu_sup_amd_not_set)]
         l += [AND(KconfigCheck('self_protection', 'defconfig', 'INTEL_IOMMU', 'y'),
                   iommu_support_is_set)]
@@ -236,7 +244,8 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
         l += [KconfigCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '32768')]
         l += [KconfigCheck('self_protection', 'kspp', 'SYN_COOKIES', 'y')] # another reason?
     if arch == 'X86_64':
-        l += [KconfigCheck('self_protection', 'kspp', 'SLS', 'y')] # vs CVE-2021-26341 in Straight-Line-Speculation
+        l += [OR(KconfigCheck('self_protection', 'kspp', 'MITIGATION_SLS', 'y'),
+                 KconfigCheck('self_protection', 'kspp', 'SLS', 'y'))] # vs CVE-2021-26341 in Straight-Line-Speculation
         l += [AND(KconfigCheck('self_protection', 'kspp', 'INTEL_IOMMU_SVM', 'y'),
                   iommu_support_is_set)]
         l += [AND(KconfigCheck('self_protection', 'kspp', 'AMD_IOMMU_V2', 'y'),
@@ -246,9 +255,10 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
         l += [KconfigCheck('self_protection', 'kspp', 'SHADOW_CALL_STACK', 'y')]
         l += [KconfigCheck('self_protection', 'kspp', 'KASAN_HW_TAGS', 'y')] # see also: kasan=on, kasan.stacktrace=off, kasan.fault=panic
     if arch == 'X86_32':
-        l += [KconfigCheck('self_protection', 'kspp', 'PAGE_TABLE_ISOLATION', 'y')]
         l += [KconfigCheck('self_protection', 'kspp', 'HIGHMEM64G', 'y')]
         l += [KconfigCheck('self_protection', 'kspp', 'X86_PAE', 'y')]
+        l += [OR(KconfigCheck('self_protection', 'kspp', 'MITIGATION_PAGE_TABLE_ISOLATION', 'y'),
+                 KconfigCheck('self_protection', 'kspp', 'PAGE_TABLE_ISOLATION', 'y'))]
         l += [AND(KconfigCheck('self_protection', 'kspp', 'INTEL_IOMMU', 'y'),
                   iommu_support_is_set)]
 
@@ -467,6 +477,10 @@ def add_cmdline_checks(l: List[ChecklistObjType], arch: str) -> None:
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'spectre_v2_user', 'is not off'),
                  AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
                      CmdlineCheck('self_protection', 'defconfig', 'spectre_v2_user', 'is not set')))]
+        l += [OR(CmdlineCheck('self_protection', 'defconfig', 'spectre_bhi', 'is not off'),
+                 AND(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_SPECTRE_BHI', 'y'),
+                     CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
+                     CmdlineCheck('self_protection', 'defconfig', 'spectre_bhi', 'is not set')))]
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'spec_store_bypass_disable', 'is not off'),
                  AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
                      CmdlineCheck('self_protection', 'defconfig', 'spec_store_bypass_disable', 'is not set')))]
@@ -494,6 +508,10 @@ def add_cmdline_checks(l: List[ChecklistObjType], arch: str) -> None:
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'gather_data_sampling', 'is not off'),
                  AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
                      CmdlineCheck('self_protection', 'defconfig', 'gather_data_sampling', 'is not set')))]
+        l += [OR(CmdlineCheck('self_protection', 'defconfig', 'reg_file_data_sampling', 'is not off'),
+                 AND(KconfigCheck('self_protection', 'defconfig', 'MITIGATION_RFDS', 'y'),
+                     CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
+                     CmdlineCheck('self_protection', 'defconfig', 'reg_file_data_sampling', 'is not set')))]
     if arch == 'ARM64':
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'kpti', 'is not off'),
                  AND(CmdlineCheck('self_protection', 'kspp', 'mitigations', 'auto,nosmt'),
@@ -613,6 +631,7 @@ no_kstrtobool_options = [
     'pti', # See pti_check_boottime_disable() in arch/x86/mm/pti.c
     'spectre_v2', # See spectre_v2_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
     'spectre_v2_user', # See spectre_v2_parse_user_cmdline() in arch/x86/kernel/cpu/bugs.c
+    'spectre_bhi', # See spectre_bhi_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
     'spec_store_bypass_disable', # See ssb_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
     'l1tf', # See l1tf_cmdline() in arch/x86/kernel/cpu/bugs.c
     'mds', # See mds_cmdline() in arch/x86/kernel/cpu/bugs.c
@@ -624,6 +643,7 @@ no_kstrtobool_options = [
     'ssbd', # See parse_spectre_v4_param() in arch/arm64/kernel/proton-pack.c
     'spec_rstack_overflow', # See srso_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
     'gather_data_sampling', # See gds_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
+    'reg_file_data_sampling', # See rfds_parse_cmdline() in arch/x86/kernel/cpu/bugs.c
     'slub_debug', # See setup_slub_debug() in mm/slub.c
     'iommu', # See iommu_setup() in arch/x86/kernel/pci-dma.c
     'vsyscall', # See vsyscall_setup() in arch/x86/entry/vsyscall/vsyscall_64.c