X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kernel_hardening_checker%2Fchecks.py;h=316408e9c9be48cb589dd483ab2e1c54af8631f3;hb=26b6e5b049d08f63b27c0e905eea57a34db1ab10;hp=635f0c1b0868976d7d98100f393e47a92e8fec8d;hpb=31352cfaebcf88a4cf39ab41396182f61e0a0ab6;p=kconfig-hardened-check.git

diff --git a/kernel_hardening_checker/checks.py b/kernel_hardening_checker/checks.py
index 635f0c1..316408e 100644
--- a/kernel_hardening_checker/checks.py
+++ b/kernel_hardening_checker/checks.py
@@ -52,7 +52,9 @@ def add_kconfig_checks(l, arch):
              KconfigCheck('self_protection', 'defconfig', 'DEBUG_SET_MODULE_RONX', 'y'),
              modules_not_set)] # DEBUG_SET_MODULE_RONX was before v4.11
     l += [OR(KconfigCheck('self_protection', 'defconfig', 'REFCOUNT_FULL', 'y'),
-             VersionCheck((5, 5)))] # REFCOUNT_FULL is enabled by default since v5.5
+             VersionCheck((5, 4, 208)))]
+             # REFCOUNT_FULL is enabled by default since v5.5,
+             # and this is backported to v5.4.208
     l += [OR(KconfigCheck('self_protection', 'defconfig', 'INIT_STACK_ALL_ZERO', 'y'),
              KconfigCheck('self_protection', 'kspp', 'GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y'))]
     if arch in ('X86_64', 'ARM64', 'X86_32'):
@@ -73,12 +75,12 @@ def add_kconfig_checks(l, arch):
         l += [microcode_is_set] # is needed for mitigating CPU bugs
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'MICROCODE_INTEL', 'y'),
                  AND(microcode_is_set,
-                     VersionCheck((6, 6))))] # MICROCODE_INTEL was included in MICROCODE since v6.6
+                     VersionCheck((6, 6, 0))))] # MICROCODE_INTEL was included in MICROCODE since v6.6
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'MICROCODE_AMD', 'y'),
                  AND(microcode_is_set,
-                     VersionCheck((6, 6))))] # MICROCODE_AMD was included in MICROCODE since v6.6
+                     VersionCheck((6, 6, 0))))] # MICROCODE_AMD was included in MICROCODE since v6.6
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'X86_SMAP', 'y'),
-                 VersionCheck((5, 19)))] # X86_SMAP is enabled by default since v5.19
+                 VersionCheck((5, 19, 0)))] # X86_SMAP is enabled by default since v5.19
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'X86_UMIP', 'y'),
                  KconfigCheck('self_protection', 'defconfig', 'X86_INTEL_UMIP', 'y'))]
     if arch in ('ARM64', 'ARM'):
@@ -108,9 +110,9 @@ def add_kconfig_checks(l, arch):
         l += [KconfigCheck('self_protection', 'defconfig', 'RANDOMIZE_MODULE_REGION_FULL', '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
+                     VersionCheck((5, 9, 0))))] # HARDEN_EL2_VECTORS was included in RANDOMIZE_BASE in v5.9
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'HARDEN_BRANCH_PREDICTOR', 'y'),
-                 VersionCheck((5, 10)))] # HARDEN_BRANCH_PREDICTOR is enabled by default since v5.10
+                 VersionCheck((5, 10, 0)))] # HARDEN_BRANCH_PREDICTOR is enabled by default since v5.10
     if arch == 'ARM':
         l += [KconfigCheck('self_protection', 'defconfig', 'CPU_SW_DOMAIN_PAN', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'HARDEN_BRANCH_PREDICTOR', 'y')]
@@ -570,6 +572,11 @@ def add_cmdline_checks(l, arch):
 
     # 'cut_attack_surface', 'my'
     l += [CmdlineCheck('cut_attack_surface', 'my', 'sysrq_always_enabled', 'is not set')]
+    if arch == 'X86_64':
+        l += [OR(CmdlineCheck('cut_attack_surface', 'my', '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')))]
 
     # 'harden_userspace'
     l += [CmdlineCheck('harden_userspace', 'defconfig', 'norandmaps', 'is not set')]