X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kconfig_hardened_check%2F__init__.py;h=48df2fc9c13dca179f876e0bf1cc44a41510146c;hb=8d3cce0b652b9cb8fb74ef01fc2cc16b696fc51c;hp=d3fc58dcfa725f055b90a3ea633925cba2a8497e;hpb=4e0065c8baf8d40c733f7f4c5c920c07b93c55b6;p=kconfig-hardened-check.git

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index d3fc58d..48df2fc 100644
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -10,11 +10,6 @@
 # Please don't cry if my Python code looks like C.
 #
 #
-#    Hardware tag-based KASAN with arm64 Memory Tagging Extension (MTE):
-#           kasan=on
-#           kasan.stacktrace=off
-#           kasan.fault=panic
-#
 # N.B. Hardening sysctls:
 #    kernel.kptr_restrict=2 (or 1?)
 #    kernel.dmesg_restrict=1 (also see the kconfig option)
@@ -71,7 +66,7 @@ class OptCheck:
                'invalid expected value "{}" for "{}" check (1)'.format(expected, name)
         val_len = len(expected.split())
         if val_len == 3:
-            assert(expected == 'is not set' or expected == 'is not off'), \
+            assert(expected in ('is not set', 'is not off')), \
                    'invalid expected value "{}" for "{}" check (2)'.format(expected, name)
         elif val_len == 2:
             assert(expected == 'is present'), \
@@ -271,7 +266,7 @@ class AND(ComplexOptCheck):
                     self.result = 'FAIL: {} is not "{}"'.format(opt.name, opt.expected)
                 elif opt.result == 'FAIL: is not present':
                     self.result = 'FAIL: {} is not present'.format(opt.name)
-                elif opt.result == 'FAIL: is off' or opt.result == 'FAIL: is off, "0"':
+                elif opt.result in ('FAIL: is off', 'FAIL: is off, "0"'):
                     self.result = 'FAIL: {} is off'.format(opt.name)
                 elif opt.result == 'FAIL: is off, not found':
                     self.result = 'FAIL: {} is off, not found'.format(opt.name)
@@ -525,7 +520,7 @@ def add_kconfig_checks(l, arch):
     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', 'KASAN_HW_TAGS', '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')]
@@ -640,6 +635,8 @@ def add_kconfig_checks(l, arch):
     l += [KconfigCheck('cut_attack_surface', 'maintainer', 'VT', 'is not set')] # recommended by Daniel Vetter in /issues/38
     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
+    l += [KconfigCheck('cut_attack_surface', 'maintainer', 'NOUVEAU_LEGACY_CTX_SUPPORT', 'is not set')]
+                                            # recommended by Dave Airlie in kernel commit b30a43ac7132cdda
 
     # 'cut_attack_surface', 'clipos'
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'STAGING', 'is not set')]
@@ -671,6 +668,7 @@ def add_kconfig_checks(l, arch):
     l += [KconfigCheck('cut_attack_surface', 'my', 'VIDEO_VIVID', 'is not set')]
     l += [KconfigCheck('cut_attack_surface', 'my', 'INPUT_EVBUG', 'is not set')] # Can be used as a keylogger
     l += [KconfigCheck('cut_attack_surface', 'my', 'KGDB', 'is not set')]
+    l += [KconfigCheck('cut_attack_surface', 'my', 'AIO', 'is not set')]
     l += [OR(KconfigCheck('cut_attack_surface', 'my', 'TRIM_UNUSED_KSYMS', 'y'),
              modules_not_set)]
 
@@ -744,6 +742,8 @@ def add_cmdline_checks(l, arch):
              CmdlineCheck('self_protection', 'defconfig', 'retbleed', 'is not set'))]
     l += [OR(CmdlineCheck('self_protection', 'defconfig', 'kpti', 'is not off'),
              CmdlineCheck('self_protection', 'defconfig', 'kpti', 'is not set'))]
+    l += [OR(CmdlineCheck('self_protection', 'defconfig', 'kvm.nx_huge_pages', 'is not off'),
+             CmdlineCheck('self_protection', 'defconfig', 'kvm.nx_huge_pages', 'is not set'))]
     if arch == 'ARM64':
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'ssbd', 'kernel'),
                  CmdlineCheck('self_protection', 'my', 'ssbd', 'force-on'),
@@ -768,7 +768,8 @@ def add_cmdline_checks(l, arch):
                  CmdlineCheck('self_protection', 'kspp', 'slub_debug', 'P')))]
     l += [OR(CmdlineCheck('self_protection', 'kspp', 'slab_nomerge', 'is present'),
              AND(KconfigCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set'),
-                 CmdlineCheck('self_protection', 'kspp', 'slab_merge', 'is not set')))]
+                 CmdlineCheck('self_protection', 'kspp', 'slab_merge', 'is not set'),
+                 CmdlineCheck('self_protection', 'clipos', 'slub_merge', 'is not set')))]
     l += [OR(CmdlineCheck('self_protection', 'kspp', 'iommu.strict', '1'),
              AND(KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_DMA_STRICT', 'y'),
                  CmdlineCheck('self_protection', 'kspp', 'iommu.strict', 'is not set')))]
@@ -1110,7 +1111,8 @@ def main():
         if mode == 'verbose':
             # print the parsed options without the checks (for debugging)
             all_parsed_options = parsed_kconfig_options # assignment does not copy
-            all_parsed_options.update(parsed_cmdline_options)
+            if args.cmdline:
+                all_parsed_options.update(parsed_cmdline_options)
             print_unknown_options(config_checklist, all_parsed_options)
 
         # finally print the results