Merge branch 'master' into scs_pac

[kconfig-hardened-check.git] / kernel_hardening_checker / checks.py

diff --git a/kernel_hardening_checker/checks.py b/kernel_hardening_checker/checks.py
index ab2432e327d7afd7ecd322ee71f66559a3e2885e..672ea7e5df389cab8eedcc004e4587aa44d78cf7 100644 (file)
--- a/kernel_hardening_checker/checks.py
+++ b/kernel_hardening_checker/checks.py
@@ -8,14 +8,14 @@ Author: Alexander Popov <alex.popov@linux.com>
 This module contains knowledge for checks.
 """
 
-# pylint: disable=missing-function-docstring,line-too-long,invalid-name
+# pylint: disable=missing-function-docstring,line-too-long
 # pylint: disable=too-many-branches,too-many-statements,too-many-locals
 
-from .engine import StrOrNone, KconfigCheck, CmdlineCheck, SysctlCheck, VersionCheck, OR, AND
 from typing import List
+from .engine import StrOrNone, ChecklistObjType, KconfigCheck, CmdlineCheck, SysctlCheck, VersionCheck, OR, AND
 
 
-def add_kconfig_checks(l: List, arch: str) -> None:
+def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
     assert(arch), 'empty arch'
 
     # Calling the KconfigCheck class constructor:
@@ -242,6 +242,7 @@ def add_kconfig_checks(l: List, arch: str) -> None:
     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', 'UNWIND_PATCH_PAC_INTO_SCS', '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')]
@@ -423,7 +424,7 @@ def add_kconfig_checks(l: List, arch: str) -> None:
         l += [KconfigCheck('harden_userspace', 'a13xp0p0v', 'X86_USER_SHADOW_STACK', 'y')]
 
 
-def add_cmdline_checks(l: List, arch: str) -> None:
+def add_cmdline_checks(l: List[ChecklistObjType], arch: str) -> None:
     assert(arch), 'empty arch'
 
     # Calling the CmdlineCheck class constructor:
@@ -647,7 +648,7 @@ def normalize_cmdline_options(option: str, value: str) -> str:
     return value
 
 
-# TODO: draft of security hardening sysctls:
+# Ideas of security hardening sysctls:
 #    what about bpf_jit_enable?
 #    vm.mmap_min_addr has a good value
 #    nosmt sysfs control file
@@ -658,7 +659,7 @@ def normalize_cmdline_options(option: str, value: str) -> str:
 #    kernel.warn_limit (think about a proper value)
 #    net.ipv4.tcp_syncookies=1 (?)
 
-def add_sysctl_checks(l: List, _arch: StrOrNone) -> None:
+def add_sysctl_checks(l: List[ChecklistObjType], _arch: StrOrNone) -> None:
 # This function may be called with arch=None
 
 # Calling the SysctlCheck class constructor: