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fact-depend
kernel-hardening-checker
Commits
e94d14b3
Commit
e94d14b3
authored
Aug 17, 2022
by
Alexander Popov
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37429744
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1 changed file
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5 additions
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4 deletions
+5
-4
__init__.py
kconfig_hardened_check/__init__.py
+5
-4
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kconfig_hardened_check/__init__.py
View file @
e94d14b3
...
@@ -666,6 +666,7 @@ def add_cmdline_checks(l, arch):
...
@@ -666,6 +666,7 @@ def add_cmdline_checks(l, arch):
# required for the cmdline parameters. That would make the checks
# required for the cmdline parameters. That would make the checks
# very complex and not give a 100% guarantee anyway.
# very complex and not give a 100% guarantee anyway.
# 'self_protection', 'defconfig'
if
arch
==
'ARM64'
:
if
arch
==
'ARM64'
:
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'full'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'full'
),
AND
(
KconfigCheck
(
'self_protection'
,
'defconfig'
,
'RODATA_FULL_DEFAULT_ENABLED'
,
'y'
),
AND
(
KconfigCheck
(
'self_protection'
,
'defconfig'
,
'RODATA_FULL_DEFAULT_ENABLED'
,
'y'
),
...
@@ -674,6 +675,7 @@ def add_cmdline_checks(l, arch):
...
@@ -674,6 +675,7 @@ def add_cmdline_checks(l, arch):
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'1'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'1'
),
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'is not set'
))]
CmdlineCheck
(
'self_protection'
,
'defconfig'
,
'rodata'
,
'is not set'
))]
# 'self_protection', 'kspp'
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'init_on_alloc'
,
'1'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'init_on_alloc'
,
'1'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'INIT_ON_ALLOC_DEFAULT_ON'
,
'y'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'INIT_ON_ALLOC_DEFAULT_ON'
,
'y'
),
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'init_on_alloc'
,
'is not set'
)))]
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'init_on_alloc'
,
'is not set'
)))]
...
@@ -692,7 +694,7 @@ def add_cmdline_checks(l, arch):
...
@@ -692,7 +694,7 @@ def add_cmdline_checks(l, arch):
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'iommu.passthrough'
,
'0'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'iommu.passthrough'
,
'0'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'IOMMU_DEFAULT_PASSTHROUGH'
,
'is not set'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'IOMMU_DEFAULT_PASSTHROUGH'
,
'is not set'
),
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'iommu.passthrough'
,
'is not set'
)))]
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'iommu.passthrough'
,
'is not set'
)))]
# The cmdline checks
based on the kconfig recommendations of the KSPP project:
# The cmdline checks
compatible with the kconfig recommendations of the KSPP project...
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'hardened_usercopy'
,
'1'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'hardened_usercopy'
,
'1'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'HARDENED_USERCOPY'
,
'y'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'HARDENED_USERCOPY'
,
'y'
),
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'hardened_usercopy'
,
'is not set'
)))]
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'hardened_usercopy'
,
'is not set'
)))]
...
@@ -701,8 +703,7 @@ def add_cmdline_checks(l, arch):
...
@@ -701,8 +703,7 @@ def add_cmdline_checks(l, arch):
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'slab_common.usercopy_fallback'
,
'is not set'
)))]
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'slab_common.usercopy_fallback'
,
'is not set'
)))]
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'page_alloc.shuffle'
,
'1'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'page_alloc.shuffle'
,
'1'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'SHUFFLE_PAGE_ALLOCATOR'
,
'y'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'SHUFFLE_PAGE_ALLOCATOR'
,
'y'
),
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'page_alloc.shuffle'
,
'is not set'
)))]
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'page_alloc.shuffle'
,
'is not set'
)))]
# ... the end
# The end
if
arch
in
(
'X86_64'
,
'ARM64'
,
'X86_32'
):
if
arch
in
(
'X86_64'
,
'ARM64'
,
'X86_32'
):
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'randomize_kstack_offset'
,
'1'
),
l
+=
[
OR
(
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'randomize_kstack_offset'
,
'1'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'RANDOMIZE_KSTACK_OFFSET_DEFAULT'
,
'y'
),
AND
(
KconfigCheck
(
'self_protection'
,
'kspp'
,
'RANDOMIZE_KSTACK_OFFSET_DEFAULT'
,
'y'
),
...
@@ -710,12 +711,12 @@ def add_cmdline_checks(l, arch):
...
@@ -710,12 +711,12 @@ def add_cmdline_checks(l, arch):
if
arch
in
(
'X86_64'
,
'X86_32'
):
if
arch
in
(
'X86_64'
,
'X86_32'
):
l
+=
[
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'pti'
,
'on'
)]
l
+=
[
CmdlineCheck
(
'self_protection'
,
'kspp'
,
'pti'
,
'on'
)]
# 'cut_attack_surface', 'kspp'
if
arch
==
'X86_64'
:
if
arch
==
'X86_64'
:
l
+=
[
OR
(
CmdlineCheck
(
'cut_attack_surface'
,
'kspp'
,
'vsyscall'
,
'none'
),
l
+=
[
OR
(
CmdlineCheck
(
'cut_attack_surface'
,
'kspp'
,
'vsyscall'
,
'none'
),
AND
(
KconfigCheck
(
'cut_attack_surface'
,
'kspp'
,
'LEGACY_VSYSCALL_NONE'
,
'y'
),
AND
(
KconfigCheck
(
'cut_attack_surface'
,
'kspp'
,
'LEGACY_VSYSCALL_NONE'
,
'y'
),
CmdlineCheck
(
'cut_attack_surface'
,
'kspp'
,
'vsyscall'
,
'is not set'
)))]
CmdlineCheck
(
'cut_attack_surface'
,
'kspp'
,
'vsyscall'
,
'is not set'
)))]
# TODO: add other
def
print_unknown_options
(
checklist
,
parsed_options
):
def
print_unknown_options
(
checklist
,
parsed_options
):
...
...
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