X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kconfig_hardened_check%2F__init__.py;h=9434c68fc5b200e5028e783a43fa95d0b2bc01c8;hb=f1b6218bc2997e54b408a46e7cc3083c3fb0ecff;hp=8130dd4027a89fb27bddd463ac374f329a3bfb3d;hpb=732eac6e7e7672693a5ee23c04c83a379a52917b;p=kconfig-hardened-check.git diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py index 8130dd4..9434c68 100644 --- a/kconfig_hardened_check/__init__.py +++ b/kconfig_hardened_check/__init__.py @@ -10,14 +10,9 @@ # Please don't cry if my Python code looks like C. # # -# N.B Hardening command line parameters: +# N.B Missing hardening command line parameters: # iommu=force (does it help against DMA attacks?) # -# Mitigations of CPU vulnerabilities: -# Аrch-independent: -# X86: -# l1d_flush=on (a part of the l1tf option) -# # Hardware tag-based KASAN with arm64 Memory Tagging Extension (MTE): # kasan=on # kasan.stacktrace=off @@ -45,6 +40,7 @@ # fs.suid_dumpable=0 # kernel.modules_disabled=1 # kernel.randomize_va_space = 2 +# nosmt sysfs control file # pylint: disable=missing-module-docstring,missing-class-docstring,missing-function-docstring @@ -385,6 +381,8 @@ def add_kconfig_checks(l, arch): if arch in ('X86_64', 'ARM64'): l += [KconfigCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y')] if arch in ('X86_64', 'X86_32'): + 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', 'X86_MCE_INTEL', 'y')] l += [KconfigCheck('self_protection', 'defconfig', 'X86_MCE_AMD', 'y')] @@ -427,7 +425,6 @@ def add_kconfig_checks(l, arch): # 'self_protection', 'kspp' l += [KconfigCheck('self_protection', 'kspp', 'BUG_ON_DATA_CORRUPTION', 'y')] - l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_WX', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'SCHED_STACK_END_CHECK', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'SLAB_FREELIST_HARDENED', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'SLAB_FREELIST_RANDOM', 'y')] @@ -440,7 +437,6 @@ def add_kconfig_checks(l, arch): l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_NOTIFIERS', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'KFENCE', 'y')] - l += [KconfigCheck('self_protection', 'kspp', 'WERROR', 'y')] 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')] @@ -517,6 +513,8 @@ def add_kconfig_checks(l, arch): l += [AND(KconfigCheck('self_protection', 'kspp', 'INTEL_IOMMU_DEFAULT_ON', 'y'), iommu_support_is_set)] if arch in ('ARM64', 'ARM'): + l += [KconfigCheck('self_protection', 'kspp', 'DEBUG_WX', 'y')] + l += [KconfigCheck('self_protection', 'kspp', 'WERROR', 'y')] l += [KconfigCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '32768')] l += [KconfigCheck('self_protection', 'kspp', 'SYN_COOKIES', 'y')] # another reason? if arch == 'X86_64': @@ -642,9 +640,6 @@ def add_kconfig_checks(l, arch): l += [KconfigCheck('cut_attack_surface', 'maintainer', 'BLK_DEV_FD', 'is not set')] # recommended by Denis Efremov in /pull/54 l += [KconfigCheck('cut_attack_surface', 'maintainer', 'BLK_DEV_FD_RAWCMD', 'is not set')] # recommended by Denis Efremov in /pull/62 - # 'cut_attack_surface', 'grapheneos' - l += [KconfigCheck('cut_attack_surface', 'grapheneos', 'AIO', 'is not set')] - # 'cut_attack_surface', 'clipos' l += [KconfigCheck('cut_attack_surface', 'clipos', 'STAGING', 'is not set')] l += [KconfigCheck('cut_attack_surface', 'clipos', 'KSM', 'is not set')] # to prevent FLUSH+RELOAD attack