kconfig-hardened-check.git
17 months agoSkip normalize_cmdline_options() for the vdso32 and vdso cmdline parameters
Alexander Popov [Mon, 12 Jun 2023 12:55:41 +0000 (15:55 +0300)]
Skip normalize_cmdline_options() for the vdso32 and vdso cmdline parameters

See vdso32_setup() in arch/x86/entry/vdso/vdso32-setup.c

17 months agoSkip normalize_cmdline_options() for the vsyscall cmdline parameter
Alexander Popov [Mon, 12 Jun 2023 12:45:56 +0000 (15:45 +0300)]
Skip normalize_cmdline_options() for the vsyscall cmdline parameter

See vsyscall_setup() in arch/x86/entry/vsyscall/vsyscall_64.c

17 months agoSkip normalize_cmdline_options() for the iommu cmdline parameter
Alexander Popov [Mon, 12 Jun 2023 12:43:05 +0000 (15:43 +0300)]
Skip normalize_cmdline_options() for the iommu cmdline parameter

See iommu_setup() in arch/x86/kernel/pci-dma.c

17 months agoSkip normalize_cmdline_options() for the slub_debug cmdline parameter
Alexander Popov [Mon, 12 Jun 2023 12:00:32 +0000 (15:00 +0300)]
Skip normalize_cmdline_options() for the slub_debug cmdline parameter

See setup_slub_debug() in mm/slub.c

17 months agoImprove the comments and README
Alexander Popov [Mon, 12 Jun 2023 11:37:42 +0000 (14:37 +0300)]
Improve the comments and README

17 months agoSkip normalize_cmdline_options() for the rodata cmdline parameter
Alexander Popov [Mon, 5 Jun 2023 20:48:34 +0000 (23:48 +0300)]
Skip normalize_cmdline_options() for the rodata cmdline parameter

Also fix the rodata check (change '1' to 'on').

See set_debug_rodata() in init/main.c.

17 months agoSkip normalize_cmdline_options() for the ssbd cmdline parameter
Alexander Popov [Mon, 5 Jun 2023 20:44:42 +0000 (23:44 +0300)]
Skip normalize_cmdline_options() for the ssbd cmdline parameter

See parse_spectre_v4_param() in arch/arm64/kernel/proton-pack.c

17 months agoAdd a comment about cfi boot parameter
Alexander Popov [Sun, 28 May 2023 23:07:50 +0000 (02:07 +0300)]
Add a comment about cfi boot parameter

17 months agoAdd the X86_KERNEL_IBT check
Alexander Popov [Sun, 28 May 2023 22:56:14 +0000 (01:56 +0300)]
Add the X86_KERNEL_IBT check

Now it's enabled by default for X86_64.

17 months agoAdd a comment about `kernel.oops_limit` and `kernel.warn_limit` sysctls
Alexander Popov [Sun, 28 May 2023 22:16:12 +0000 (01:16 +0300)]
Add a comment about `kernel.oops_limit` and `kernel.warn_limit` sysctls

17 months agoAdd a comment about `kernel.unprivileged_userns_clone` sysctl in Debian
Alexander Popov [Sat, 27 May 2023 07:05:10 +0000 (10:05 +0300)]
Add a comment about `kernel.unprivileged_userns_clone` sysctl in Debian

17 months agoAdd the comments about HARDENED_USERCOPY features
Alexander Popov [Sat, 27 May 2023 05:50:35 +0000 (08:50 +0300)]
Add the comments about HARDENED_USERCOPY features

18 months agoFix CI output style and move `pip install coverage` to the proper place
Alexander Popov [Tue, 9 May 2023 22:18:14 +0000 (01:18 +0300)]
Fix CI output style and move `pip install coverage` to the proper place

18 months agoUse .github/workflows/functional_test.sh in GitHub Actions (like in Woodpecker-CI)
Alexander Popov [Mon, 8 May 2023 19:02:23 +0000 (22:02 +0300)]
Use .github/workflows/functional_test.sh in GitHub Actions (like in Woodpecker-CI)

Now functional_test.sh is a common script used both in GitHub Actions
and Woodpecker-CI.

And also test the forgotten .gz kernel config.

18 months agoRun the functional tests and collect the coverage in Woodpecker-CI
Alexander Popov [Mon, 8 May 2023 17:33:44 +0000 (20:33 +0300)]
Run the functional tests and collect the coverage in Woodpecker-CI

18 months agoCheck all configs with the installed tool the functional test in Woodpecker-CI
Alexander Popov [Mon, 8 May 2023 17:01:54 +0000 (20:01 +0300)]
Check all configs with the installed tool the functional test in Woodpecker-CI

18 months agoTest the package installation in the functional test in Woodpecker-CI
Alexander Popov [Mon, 8 May 2023 12:27:18 +0000 (15:27 +0300)]
Test the package installation in the functional test in Woodpecker-CI

18 months agoRun the engine unit-test in Woodpecker-CI
Alexander Popov [Sun, 7 May 2023 21:21:58 +0000 (00:21 +0300)]
Run the engine unit-test in Woodpecker-CI

18 months agoCreate multiple pipelines for Woodpecker-CI at Codeberg
Alexander Popov [Sun, 7 May 2023 18:02:01 +0000 (21:02 +0300)]
Create multiple pipelines for Woodpecker-CI at Codeberg

18 months agoCreate a configuration template for Codeberg CI (.woodpecker.yml)
Alexander Popov [Sun, 7 May 2023 17:28:45 +0000 (20:28 +0300)]
Create a configuration template for Codeberg CI (.woodpecker.yml)

18 months agoAdd the checks for vdso32 and vdso on X86_64 and X86_32
Alexander Popov [Mon, 1 May 2023 18:24:09 +0000 (21:24 +0300)]
Add the checks for vdso32 and vdso on X86_64 and X86_32

We need to check them because these kernel cmdline parameters can
override the COMPAT_VDSO kconfig option.

18 months agoImprove the COMPAT_VDSO check
Alexander Popov [Sun, 30 Apr 2023 22:16:03 +0000 (01:16 +0300)]
Improve the COMPAT_VDSO check

CONFIG_COMPAT_VDSO disabled ASLR of vDSO only on X86_64 and X86_32.
On ARM64 this option has different meaning (see the mainline commit
7c4791c9efca8c105a86022f7d5532aeaa819125).

Thanks to @izh1979 for the idea

18 months agoImprove the vsyscall checks
Alexander Popov [Sun, 30 Apr 2023 20:36:55 +0000 (23:36 +0300)]
Improve the vsyscall checks

Disabling X86_VSYSCALL_EMULATION turns vsyscall off completely, and
LEGACY_VSYSCALL_NONE can be changed at boot time via the cmdline parameter.

Thanks to @izh1979 for the idea

18 months agoAdd the comment about kernel.sysrq=0
Alexander Popov [Sun, 30 Apr 2023 19:51:08 +0000 (22:51 +0300)]
Add the comment about kernel.sysrq=0

19 months agoMake hackish refinement of the CONFIG_ARCH_MMAP_RND_BITS check
Alexander Popov [Sat, 22 Apr 2023 23:00:31 +0000 (02:00 +0300)]
Make hackish refinement of the CONFIG_ARCH_MMAP_RND_BITS check

Use new override_expected_value() for that.

This is needed to avoid wrong recommendations for ARM64 and ARM, where
CONFIG_ARCH_MMAP_RND_BITS_MAX depends on the paging configuration.

19 months agotest_engine: add test_value_overriding()
Alexander Popov [Sat, 22 Apr 2023 22:42:59 +0000 (01:42 +0300)]
test_engine: add test_value_overriding()

19 months agoengine: implement override_expected_value()
Alexander Popov [Sat, 22 Apr 2023 22:23:38 +0000 (01:23 +0300)]
engine: implement override_expected_value()

19 months agoRequire one of major LSMs implementing MAC
Alexander Popov [Sat, 22 Apr 2023 15:51:26 +0000 (18:51 +0300)]
Require one of major LSMs implementing MAC

SELinux, Smack, Tomoyo, and AppArmor implement Mandatory Access Control (MAC).

Thanks to @izh1979 for the idea

19 months agoAdd the norandmaps check
Alexander Popov [Sat, 22 Apr 2023 15:03:15 +0000 (18:03 +0300)]
Add the norandmaps check

Thanks to @izh1979 for the idea

19 months agoCheck that CoreSight Tracing Support is disabled (to cut attack surface)
Alexander Popov [Sat, 22 Apr 2023 14:50:25 +0000 (17:50 +0300)]
Check that CoreSight Tracing Support is disabled (to cut attack surface)

The CONFIG_CORESIGHT framework provides a kernel interface for the
CoreSight debug and trace drivers for ARM/ARM64. It's better to have it
disabled to cut attack surface.

19 months agoDrop the INTEGRITY check
Alexander Popov [Sun, 9 Apr 2023 23:48:08 +0000 (02:48 +0300)]
Drop the INTEGRITY check

CONFIG_INTEGRITY is useless without enabling IMA/EVM.
We can't require enabling IMA/EVM because there are other
file system integrity mechanisms like DM_VERITY, FS_VERITY, etc.
So there is no reason to check CONFIG_INTEGRITY.

Refers to #75

19 months agoAdd the DEBUG_ALIGN_RODATA check for ARM
Alexander Popov [Sun, 9 Apr 2023 22:54:41 +0000 (01:54 +0300)]
Add the DEBUG_ALIGN_RODATA check for ARM

19 months agoAdd new Android kernel configs from my friends
Alexander Popov [Sun, 9 Apr 2023 22:20:13 +0000 (01:20 +0300)]
Add new Android kernel configs from my friends

Also rename old Android configs

19 months agoAdd the LEGACY_TIOCSTI check
Alexander Popov [Sun, 9 Apr 2023 21:43:09 +0000 (00:43 +0300)]
Add the LEGACY_TIOCSTI check

19 months agoengine: remove the unused 'type' property from the OptCheck object
Alexander Popov [Sun, 2 Apr 2023 11:27:58 +0000 (14:27 +0300)]
engine: remove the unused 'type' property from the OptCheck object

19 months agotest_engine: rename unit-tests
Alexander Popov [Sun, 2 Apr 2023 11:22:10 +0000 (14:22 +0300)]
test_engine: rename unit-tests

19 months agotest_engine: increase the unit-test coverage
Alexander Popov [Sun, 2 Apr 2023 11:16:03 +0000 (14:16 +0300)]
test_engine: increase the unit-test coverage

19 months agotest_engine: test the non-verbose output mode
Alexander Popov [Sun, 2 Apr 2023 09:39:49 +0000 (12:39 +0300)]
test_engine: test the non-verbose output mode

19 months agotest_engine: support the non-verbose output mode in get_engine_result()
Alexander Popov [Sun, 2 Apr 2023 09:27:57 +0000 (12:27 +0300)]
test_engine: support the non-verbose output mode in get_engine_result()

19 months agoFix a pylint warning about f-string
Alexander Popov [Sun, 2 Apr 2023 09:28:47 +0000 (12:28 +0300)]
Fix a pylint warning about f-string

19 months agotest_engine: add test_verbose()
Alexander Popov [Sun, 2 Apr 2023 08:29:38 +0000 (11:29 +0300)]
test_engine: add test_verbose()

19 months agotest_engine: implement get_engine_result() for stdout
Alexander Popov [Sun, 2 Apr 2023 08:29:10 +0000 (11:29 +0300)]
test_engine: implement get_engine_result() for stdout

19 months agotest_engine: introduce get_engine_result()
Alexander Popov [Sun, 2 Apr 2023 08:26:40 +0000 (11:26 +0300)]
test_engine: introduce get_engine_result()

It's refactoring, no functional changes

19 months agotest_engine: add test_version()
Alexander Popov [Sun, 26 Mar 2023 17:59:00 +0000 (20:59 +0300)]
test_engine: add test_version()

19 months agotest_engine: add missing cases for test_OR() and test_AND()
Alexander Popov [Sun, 26 Mar 2023 17:04:38 +0000 (20:04 +0300)]
test_engine: add missing cases for test_OR() and test_AND()

I mean testing 'is present' and 'is not off' in OR/AND

19 months agotest_engine: test 'is not off'
Alexander Popov [Sun, 26 Mar 2023 16:44:58 +0000 (19:44 +0300)]
test_engine: test 'is not off'

19 months agotest_engine: test 'is present'
Alexander Popov [Sun, 26 Mar 2023 16:30:52 +0000 (19:30 +0300)]
test_engine: test 'is present'

19 months agotest_engine: add a missing case for test_OR()
Alexander Popov [Sun, 26 Mar 2023 16:09:39 +0000 (19:09 +0300)]
test_engine: add a missing case for test_OR()

19 months agoEnable functional testing for a gzipped config
Alexander Popov [Sun, 26 Mar 2023 15:30:31 +0000 (18:30 +0300)]
Enable functional testing for a gzipped config

Refers to #80

19 months agoInform about supporting *.gz kconfig files
Alexander Popov [Sun, 26 Mar 2023 15:19:55 +0000 (18:19 +0300)]
Inform about supporting *.gz kconfig files

Refers to #80

19 months agoAdd an example of a gzipped config
Alexander Popov [Sun, 26 Mar 2023 15:10:40 +0000 (18:10 +0300)]
Add an example of a gzipped config

Refers to #80

19 months agoMerge pull request #80 from nE0sIghT/feature/gzipped-config
Alexander Popov [Sun, 26 Mar 2023 15:06:37 +0000 (18:06 +0300)]
Merge pull request #80 from nE0sIghT/feature/gzipped-config

Added support for gzipped config (eg. /proc/config.gz)

19 months agoAdded support for gzipped config (eg. /proc/config.gz) 80/head
Yuri Konotopov [Sat, 25 Mar 2023 09:36:30 +0000 (13:36 +0400)]
Added support for gzipped config (eg. /proc/config.gz)

19 months agotest_engine: add test_OR() and test_AND()
Alexander Popov [Fri, 24 Mar 2023 20:19:02 +0000 (23:19 +0300)]
test_engine: add test_OR() and test_AND()

19 months agotest_engine: reorganize single unit-tests
Alexander Popov [Fri, 24 Mar 2023 20:18:32 +0000 (23:18 +0300)]
test_engine: reorganize single unit-tests

19 months agotest_engine: add test_kconfig_not_found()
Alexander Popov [Fri, 24 Mar 2023 20:18:06 +0000 (23:18 +0300)]
test_engine: add test_kconfig_not_found()

19 months agoPrevent populating the checklist with empty data
Alexander Popov [Fri, 24 Mar 2023 20:17:39 +0000 (23:17 +0300)]
Prevent populating the checklist with empty data

19 months agotest_engine: add test_cmdline_ok() and test_cmdline_fail()
Alexander Popov [Fri, 24 Mar 2023 20:17:20 +0000 (23:17 +0300)]
test_engine: add test_cmdline_ok() and test_cmdline_fail()

19 months agotest_engine: add test_kconfig_fail()
Alexander Popov [Fri, 24 Mar 2023 20:16:41 +0000 (23:16 +0300)]
test_engine: add test_kconfig_fail()

19 months agoMute some pylint warnings for test_engine.py
Alexander Popov [Fri, 24 Mar 2023 20:16:15 +0000 (23:16 +0300)]
Mute some pylint warnings for test_engine.py

19 months agotest_engine: add test_kconfig_ok()
Alexander Popov [Fri, 24 Mar 2023 20:15:57 +0000 (23:15 +0300)]
test_engine: add test_kconfig_ok()

19 months agorun_engine(): add the 'result' argument and put the JSON output into it
Alexander Popov [Fri, 24 Mar 2023 20:15:38 +0000 (23:15 +0300)]
run_engine(): add the 'result' argument and put the JSON output into it

19 months agoFix pylint warnings: add class docstring
Alexander Popov [Fri, 24 Mar 2023 20:11:49 +0000 (23:11 +0300)]
Fix pylint warnings: add class docstring

19 months agoFix pylint warnings: mark run_engine() with @staticmethod
Alexander Popov [Fri, 24 Mar 2023 20:11:22 +0000 (23:11 +0300)]
Fix pylint warnings: mark run_engine() with @staticmethod

19 months agoCreate the run_engine() helper
Alexander Popov [Fri, 24 Mar 2023 20:10:57 +0000 (23:10 +0300)]
Create the run_engine() helper

19 months agoAdd the first unit-test draft
Alexander Popov [Fri, 24 Mar 2023 20:10:35 +0000 (23:10 +0300)]
Add the first unit-test draft

19 months agoFix style
Alexander Popov [Fri, 24 Mar 2023 20:10:13 +0000 (23:10 +0300)]
Fix style

20 months agoGroup the badges
Alexander Popov [Sat, 11 Mar 2023 08:31:27 +0000 (11:31 +0300)]
Group the badges

20 months agoSet the names for the codecov uploads
Alexander Popov [Fri, 10 Mar 2023 22:07:41 +0000 (01:07 +0300)]
Set the names for the codecov uploads

20 months agoCreate two separate badges: functional test coverage and unit-test coverage
Alexander Popov [Fri, 10 Mar 2023 21:31:33 +0000 (00:31 +0300)]
Create two separate badges: functional test coverage and unit-test coverage

20 months agoInstall 'coverage' in the unit-test CI workflow
Alexander Popov [Fri, 10 Mar 2023 21:17:02 +0000 (00:17 +0300)]
Install 'coverage' in the unit-test CI workflow

20 months agoDon't fail the unit-test template
Alexander Popov [Fri, 10 Mar 2023 21:09:38 +0000 (00:09 +0300)]
Don't fail the unit-test template

That will allow the CI workflow to continue

20 months agoUpload the unit-test coverage to codecov (use a separate flag)
Alexander Popov [Fri, 10 Mar 2023 21:03:49 +0000 (00:03 +0300)]
Upload the unit-test coverage to codecov (use a separate flag)

20 months agoAdd the links to the project badges
Alexander Popov [Fri, 10 Mar 2023 20:39:02 +0000 (23:39 +0300)]
Add the links to the project badges

20 months agoAdd the unit-test badge
Alexander Popov [Fri, 10 Mar 2023 20:36:34 +0000 (23:36 +0300)]
Add the unit-test badge

20 months agoRename the workflow file with the functional test
Alexander Popov [Fri, 10 Mar 2023 20:33:24 +0000 (23:33 +0300)]
Rename the workflow file with the functional test

20 months agoCreate a separate CI workflow for unit-tests
Alexander Popov [Fri, 10 Mar 2023 20:22:47 +0000 (23:22 +0300)]
Create a separate CI workflow for unit-tests

20 months agoAdd a template for unit-tests
Alexander Popov [Fri, 10 Mar 2023 20:12:58 +0000 (23:12 +0300)]
Add a template for unit-tests

20 months agoErase coverage to prepare for unit-testing
Alexander Popov [Fri, 10 Mar 2023 20:03:04 +0000 (23:03 +0300)]
Erase coverage to prepare for unit-testing

20 months agoLimit the number of parallel GitHub Action jobs to 3
Alexander Popov [Mon, 6 Mar 2023 17:06:38 +0000 (20:06 +0300)]
Limit the number of parallel GitHub Action jobs to 3

That hopefully prevents the error "codecov failed with exit code 255".

20 months agoAdd more automatic tests (and increase the coverage)
Alexander Popov [Mon, 6 Mar 2023 15:49:42 +0000 (18:49 +0300)]
Add more automatic tests (and increase the coverage)

20 months agoUpdate the GitHub Actions to newer versions
Alexander Popov [Mon, 6 Mar 2023 15:21:08 +0000 (18:21 +0300)]
Update the GitHub Actions to newer versions

20 months agoDrop a useless 'if'
Alexander Popov [Mon, 6 Mar 2023 14:59:53 +0000 (17:59 +0300)]
Drop a useless 'if'

This condition has been checked at the beginning of the function.

Noticed this in the code coverage report.

20 months agoRefactor normalize_cmdline_options() for better style and test coverage
Alexander Popov [Mon, 6 Mar 2023 14:51:47 +0000 (17:51 +0300)]
Refactor normalize_cmdline_options() for better style and test coverage

20 months agoDrop the 'kvm.nx_huge_pages' check
Alexander Popov [Mon, 6 Mar 2023 14:35:29 +0000 (17:35 +0300)]
Drop the 'kvm.nx_huge_pages' check

It's not really about security

20 months agoFix the bug in OptCheck.check() introduced in cb779a71bf57d95b
Alexander Popov [Sun, 5 Mar 2023 20:56:45 +0000 (23:56 +0300)]
Fix the bug in OptCheck.check() introduced in cb779a71bf57d95b

Use 'elif' instead of 'if' to avoid wrong self.result when
self.state is 'off'.

We need unit-tests for the engine checking the correctness: #79

20 months agoImprove the test coverage
Alexander Popov [Sun, 5 Mar 2023 14:42:58 +0000 (17:42 +0300)]
Improve the test coverage

20 months agoFix style in the CI script
Alexander Popov [Sun, 5 Mar 2023 14:40:16 +0000 (17:40 +0300)]
Fix style in the CI script

20 months agoImprove the slab_nomerge check
Alexander Popov [Sun, 5 Mar 2023 13:55:44 +0000 (16:55 +0300)]
Improve the slab_nomerge check

20 months agoAdd my files to gitignore
Alexander Popov [Sun, 5 Mar 2023 13:23:14 +0000 (16:23 +0300)]
Add my files to gitignore

20 months agoUse similar f-strings for more cases
Alexander Popov [Sun, 5 Mar 2023 13:19:41 +0000 (16:19 +0300)]
Use similar f-strings for more cases

20 months agoCompare with None explicitly
Alexander Popov [Sun, 5 Mar 2023 12:57:43 +0000 (15:57 +0300)]
Compare with None explicitly

These objects should be compared for identity with None using 'is' operator.

20 months agoAdd the GitHub link
Alexander Popov [Sun, 5 Mar 2023 10:02:21 +0000 (13:02 +0300)]
Add the GitHub link

20 months agoAllow not setting specific CPU bug mitigations only if 'mitigations=auto,nosmt'
Alexander Popov [Wed, 1 Mar 2023 15:26:02 +0000 (18:26 +0300)]
Allow not setting specific CPU bug mitigations only if 'mitigations=auto,nosmt'

20 months agoImprove the 'pylint disable' statements
Alexander Popov [Sun, 26 Feb 2023 20:08:07 +0000 (23:08 +0300)]
Improve the 'pylint disable' statements

20 months agoAdd docstrings for the modules
Alexander Popov [Sun, 26 Feb 2023 20:05:44 +0000 (23:05 +0300)]
Add docstrings for the modules

20 months agoSplit into Python modules
Alexander Popov [Sun, 26 Feb 2023 19:06:08 +0000 (22:06 +0300)]
Split into Python modules

20 months agoFix pylint: Using open without explicitly specifying an encoding
Alexander Popov [Sun, 26 Feb 2023 07:02:04 +0000 (10:02 +0300)]
Fix pylint: Using open without explicitly specifying an encoding

20 months agoFix pylint warning: formatting a regular string which could be a f-string (IV)
Alexander Popov [Sun, 26 Feb 2023 06:44:26 +0000 (09:44 +0300)]
Fix pylint warning: formatting a regular string which could be a f-string (IV)

Part IV, sys.exit()

20 months agoFix pylint warning: formatting a regular string which could be a f-string (III)
Alexander Popov [Sun, 26 Feb 2023 06:37:21 +0000 (09:37 +0300)]
Fix pylint warning: formatting a regular string which could be a f-string (III)

Part III, strings