Alexander Popov [Sat, 4 Feb 2023 11:57:54 +0000 (14:57 +0300)]
Don't use the uninitialized 'parsed_cmdline_options' variable
Alexander Popov [Sun, 22 Jan 2023 00:37:51 +0000 (03:37 +0300)]
Update the README
Ready for release 0.6.1.
Alexander Popov [Sun, 22 Jan 2023 22:16:52 +0000 (01:16 +0300)]
Fix the 'decision' for the slub_merge check
Alexander Popov [Sun, 22 Jan 2023 00:16:01 +0000 (03:16 +0300)]
Fix the pylint R1714 issues
No functional changes
Alexander Popov [Sat, 21 Jan 2023 22:52:33 +0000 (01:52 +0300)]
Add the check for the 'kvm.nx_huge_pages' cmdline parameter
Alexander Popov [Sat, 21 Jan 2023 22:41:43 +0000 (01:41 +0300)]
Add the check for the slub_merge cmdline parameter
Alexander Popov [Sat, 21 Jan 2023 22:07:42 +0000 (01:07 +0300)]
Rename the file with the KSPP cmdline recommendations to avoid breaking the CI
Alexander Popov [Sat, 21 Jan 2023 22:00:31 +0000 (01:00 +0300)]
Clean up the comments
Alexander Popov [Sat, 21 Jan 2023 21:58:41 +0000 (00:58 +0300)]
Add the check for the iommu cmdline option
Refers to #76
Alexander Popov [Sat, 21 Jan 2023 12:30:56 +0000 (15:30 +0300)]
Add the KSPP cmdline recommendations for x86_64
Alexander Popov [Sat, 21 Jan 2023 12:23:13 +0000 (15:23 +0300)]
Include parsed_cmdline_options in the print_unknown_options() call
Alexander Popov [Sat, 21 Jan 2023 10:53:39 +0000 (13:53 +0300)]
Rename the files with the KSPP recommendations
Alexander Popov [Thu, 19 Jan 2023 15:54:49 +0000 (18:54 +0300)]
Drop get-nix-kconfig.py (`nix-build get-nixos-kconfig.nix` does the job)
Refers to #77 and #63.
Alexander Popov [Thu, 19 Jan 2023 15:34:12 +0000 (18:34 +0300)]
Add the NixOS kernel configs
Refers to #77
Alexander Popov [Thu, 19 Jan 2023 15:10:54 +0000 (18:10 +0300)]
Merge branch 'from-o8opi-2'
Thanks, @o8opi
Alexander Popov [Sun, 15 Jan 2023 21:10:12 +0000 (00:10 +0300)]
Update the VMAP_STACK check: it is available for ARM
Alexander Popov [Sun, 15 Jan 2023 20:06:20 +0000 (23:06 +0300)]
Fix the arch condition for the SCHED_CORE check (II)
Alexander Popov [Sat, 14 Jan 2023 15:46:45 +0000 (18:46 +0300)]
Update the KSPP recommendations
Alexander Popov [Sat, 14 Jan 2023 15:07:29 +0000 (18:07 +0300)]
Fix the IOMMU_DEFAULT_DMA_STRICT check: it is in defconfig for arm64 and arm
Alexander Popov [Sat, 14 Jan 2023 10:47:21 +0000 (13:47 +0300)]
Add the COMPAT and X86_X32_ABI checks
KSPP has added them to the recommendations.
Refers to #74.
Alexander Popov [Sat, 14 Jan 2023 10:39:49 +0000 (13:39 +0300)]
Fix the WERROR check: it is in defconfig for X86_64 and X86_32 now
Alexander Popov [Sat, 14 Jan 2023 10:33:33 +0000 (13:33 +0300)]
Fix the DEBUG_WX check: it is in defconfig for X86_64 and X86_32 now
Alexander Popov [Fri, 13 Jan 2023 19:12:22 +0000 (22:12 +0300)]
Add defconfigs for Linux v6.1
o8opi [Thu, 29 Dec 2022 09:02:02 +0000 (10:02 +0100)]
add get-nixos-kconfig nix script
Alexander Popov [Mon, 26 Dec 2022 09:58:06 +0000 (12:58 +0300)]
Add the repository mirrors
Alexander Popov [Sun, 25 Dec 2022 18:03:04 +0000 (21:03 +0300)]
Backup the pull requests and issues into a Markdown file using gh2md
That would allow to have more information in the mirror repositories.
I used the mattduck/gh2md tool for that purpose.
It employs https://api.github.com/graphql, so I had to generate
a GitHub personal access token (classic) with public access.
Alexander Popov [Fri, 16 Dec 2022 23:35:43 +0000 (02:35 +0300)]
Remove the AIO check
Currently GrapheneOS doesn't have it.
Alexander Popov [Sat, 10 Dec 2022 18:25:13 +0000 (21:25 +0300)]
Remember about the nosmt sysfs control file
Alexander Popov [Sat, 10 Dec 2022 18:24:42 +0000 (21:24 +0300)]
Drop the comment about mitigations of CPU vulnerabilities
The corresponding checks have been developed.
Alexander Popov [Sat, 10 Dec 2022 18:18:34 +0000 (21:18 +0300)]
Save the list of disabled mitigations of CPU vulnerabilities (for history)
Alexander Popov [Sat, 10 Dec 2022 17:44:23 +0000 (20:44 +0300)]
Add the nospectre_bhb check
Alexander Popov [Sat, 10 Dec 2022 08:01:16 +0000 (11:01 +0300)]
Add the kpti check
1. Don't add an exception to normalize_cmdline_options() since strtobool()
is used for kpti
2. Use new '0' check of 'is not off'
Alexander Popov [Sat, 10 Dec 2022 07:47:05 +0000 (10:47 +0300)]
Compare against '0' in the 'is not off' check
Alexander Popov [Sat, 10 Dec 2022 07:08:23 +0000 (10:08 +0300)]
Add the tsx check
Alexander Popov [Sat, 10 Dec 2022 07:07:10 +0000 (10:07 +0300)]
Change the 'decision' of X86_INTEL_TSX_MODE_OFF check to defconfig
Alexander Popov [Sat, 10 Dec 2022 06:33:43 +0000 (09:33 +0300)]
Add the nomte check
Alexander Popov [Sat, 10 Dec 2022 06:32:51 +0000 (09:32 +0300)]
Add the nopauth check
Alexander Popov [Sat, 10 Dec 2022 06:32:21 +0000 (09:32 +0300)]
Add the nobti check
Alexander Popov [Fri, 9 Dec 2022 18:00:08 +0000 (21:00 +0300)]
Add the sysrq_always_enabled check
Alexander Popov [Fri, 9 Dec 2022 17:37:49 +0000 (20:37 +0300)]
Add the ssbd check
Alexander Popov [Thu, 8 Dec 2022 22:38:05 +0000 (01:38 +0300)]
Avoid the YAML parsing mistake
3.10 is parsed as a number and it is trimmed to 3.1.
That is expected behavior for numbers, but it's crazy for versions.
Alexander Popov [Thu, 8 Dec 2022 22:29:03 +0000 (01:29 +0300)]
Fix `python-version` in the GitHub Actions
Current `ubuntu-latest` (Ubuntu 22.04 for x86_64) provides the following
versions of Python:
- 3.10.8
- 3.11.0
- 3.7.15
- 3.8.15
- 3.9.15
Alexander Popov [Thu, 8 Dec 2022 21:59:38 +0000 (00:59 +0300)]
Reorder some checks, no functional changes
Alexander Popov [Thu, 17 Nov 2022 16:39:32 +0000 (19:39 +0300)]
Add the srbds check
Alexander Popov [Thu, 17 Nov 2022 16:29:26 +0000 (19:29 +0300)]
Add the retbleed check
Alexander Popov [Thu, 17 Nov 2022 16:23:55 +0000 (19:23 +0300)]
Add the mmio_stale_data check
Alexander Popov [Thu, 17 Nov 2022 16:19:55 +0000 (19:19 +0300)]
Add the tsx_async_abort check
Alexander Popov [Thu, 17 Nov 2022 14:34:24 +0000 (17:34 +0300)]
Add the mds check
Alexander Popov [Thu, 17 Nov 2022 14:28:28 +0000 (17:28 +0300)]
Add the l1tf check
Alexander Popov [Thu, 17 Nov 2022 14:19:21 +0000 (17:19 +0300)]
Add the spectre_v2_user check
Alexander Popov [Thu, 17 Nov 2022 13:57:25 +0000 (16:57 +0300)]
Do refactoring in normalize_cmdline_options()
Alexander Popov [Thu, 17 Nov 2022 13:56:18 +0000 (16:56 +0300)]
Add the spec_store_bypass_disable check
Alexander Popov [Thu, 17 Nov 2022 13:42:30 +0000 (16:42 +0300)]
Add the spectre_v2 check
Alexander Popov [Thu, 17 Nov 2022 12:23:55 +0000 (15:23 +0300)]
Introduce the 'is present' check instead of expected=None constructor parameter
Alexander Popov [Fri, 11 Nov 2022 14:39:19 +0000 (17:39 +0300)]
Add the 'mitigations' check
The default value for the 'mitigations' option is 'auto'.
So this option should be enabled ('is not off') or not set at all.
Alexander Popov [Wed, 9 Nov 2022 15:32:52 +0000 (18:32 +0300)]
Add the nosmt check
Alexander Popov [Wed, 9 Nov 2022 15:24:52 +0000 (18:24 +0300)]
Add a special 'desired val' -- 'is not off'
This check gives FAIL if the option value is 'off' or
the option is not found. In other cases this check gives OK.
This feature is needed for checking that the CPU vulnerability mitigations
are not disabled. Let's see how it works and maybe improve it in future.
Alexander Popov [Wed, 9 Nov 2022 14:46:38 +0000 (17:46 +0300)]
Improve the result descriptions
Alexander Popov [Tue, 8 Nov 2022 21:31:16 +0000 (00:31 +0300)]
Add assertions to check arguments of the Class constructors
Alexander Popov [Sun, 23 Oct 2022 17:08:29 +0000 (20:08 +0300)]
Update the README
Alexander Popov [Sun, 23 Oct 2022 16:31:16 +0000 (19:31 +0300)]
Add the ARM64_E0PD check
Alexander Popov [Sun, 23 Oct 2022 16:14:46 +0000 (19:14 +0300)]
Fix the SCHED_CORE check: it's now available for ARM64 and ARM
Alexander Popov [Sun, 23 Oct 2022 15:23:55 +0000 (18:23 +0300)]
Update the self-protection checks adopted by KSPP (part V)
Thanks to @kees
Alexander Popov [Sat, 22 Oct 2022 21:05:45 +0000 (00:05 +0300)]
Update the self-protection checks adopted by KSPP (part IV): IOMMU
Thanks to @kees
Alexander Popov [Sat, 22 Oct 2022 21:02:55 +0000 (00:02 +0300)]
Update the self-protection checks adopted by KSPP (part III)
Thanks to @kees
Alexander Popov [Sat, 22 Oct 2022 18:34:56 +0000 (21:34 +0300)]
Update the KSPP recommendations again
Alexander Popov [Thu, 13 Oct 2022 16:33:11 +0000 (19:33 +0300)]
Update the self-protection checks adopted by KSPP (part II)
Thanks to @kees
Alexander Popov [Thu, 13 Oct 2022 15:24:41 +0000 (18:24 +0300)]
Update the self-protection checks adopted by KSPP (part I)
Thanks to @kees
Alexander Popov [Thu, 13 Oct 2022 15:07:14 +0000 (18:07 +0300)]
Update the HW_RANDOM_TPM check
Clip OS says that RANDOM_TRUST_BOOTLOADER and RANDOM_TRUST_CPU should be
disabled if HW_RANDOM_TPM is enabled. The Clip OS description:
Do not credit entropy included in Linux’s entropy pool when generated
by the CPU manufacturer’s HWRNG, the bootloader or the UEFI firmware.
Fast and robust initialization of Linux’s CSPRNG is instead achieved
thanks to the TPM’s HWRNG.
At the same time KSPP recommends to enable RANDOM_TRUST_BOOTLOADER and
RANDOM_TRUST_CPU anyway:
Get as much entropy as possible from external sources. The Chacha mixer
isn't vulnerable to injected entropy, so even malicious sources
should not cause problems.
In this situation, I think kconfig-hardened-check should check
only HW_RANDOM_TPM (there is no contradiction about it)
and leave the decision about RANDOM_TRUST_BOOTLOADER and
RANDOM_TRUST_CPU to the owner of the system.
Alexander Popov [Thu, 13 Oct 2022 14:19:23 +0000 (17:19 +0300)]
Update the UBSAN checks according to the KSPP recommendations
Thanks to @kees
Alexander Popov [Thu, 13 Oct 2022 13:54:02 +0000 (16:54 +0300)]
Update the security policy checks adopted by KSPP
Thanks to @kees
Alexander Popov [Thu, 13 Oct 2022 13:17:58 +0000 (16:17 +0300)]
Update the KSPP recommendations
Alexander Popov [Wed, 12 Oct 2022 18:49:23 +0000 (21:49 +0300)]
Improve the README
Alexander Popov [Sun, 9 Oct 2022 22:10:48 +0000 (01:10 +0300)]
Update the README
Alexander Popov [Sun, 9 Oct 2022 21:55:21 +0000 (00:55 +0300)]
Drop some of my security policy recommendations
Alexander Popov [Sun, 9 Oct 2022 18:31:25 +0000 (21:31 +0300)]
Check SECURITY_SELINUX_DEVELOP (recommended by Clip OS)
Clip OS description: it "will eventually be n".
Alexander Popov [Sun, 9 Oct 2022 18:25:33 +0000 (21:25 +0300)]
Check SECURITY_SELINUX_BOOTPARAM (recommended by Clip OS)
Alexander Popov [Sun, 9 Oct 2022 18:04:19 +0000 (21:04 +0300)]
Improve the HW_RANDOM_TPM check
RANDOM_TRUST_BOOTLOADER and RANDOM_TRUST_CPU should be disabled if
HW_RANDOM_TPM is enabled.
The Clip OS description:
Do not credit entropy included in Linux’s entropy pool when generated
by the CPU manufacturer’s HWRNG, the bootloader or the UEFI firmware.
Fast and robust initialization of Linux’s CSPRNG is instead achieved
thanks to the TPM’s HWRNG.
Alexander Popov [Sun, 9 Oct 2022 17:49:58 +0000 (20:49 +0300)]
Check COREDUMP (recommended by Clip OS)
Disabling COREDUMP is needed for cutting userspace attack surface.
Alexander Popov [Sun, 9 Oct 2022 12:49:13 +0000 (15:49 +0300)]
Check CONFIG_HW_RANDOM_TPM (recommended by Clip OS)
Alexander Popov [Sun, 9 Oct 2022 12:32:55 +0000 (15:32 +0300)]
Check X86_MCE, X86_MCE_INTEL, X86_MCE_AMD (recommended by Clip OS)
These options are enabled by default.
Alexander Popov [Sun, 9 Oct 2022 11:23:20 +0000 (14:23 +0300)]
Improve the README
Alexander Popov [Wed, 5 Oct 2022 13:56:28 +0000 (16:56 +0300)]
Update the README
Alexander Popov [Sun, 2 Oct 2022 18:45:13 +0000 (21:45 +0300)]
Also check 'nospectre_v2' with 'spectre_v2'
Alexander Popov [Sun, 2 Oct 2022 18:44:47 +0000 (21:44 +0300)]
Change the reason for the 'nopti' check
Alexander Popov [Sun, 2 Oct 2022 17:52:47 +0000 (20:52 +0300)]
Change the reason for the 'nokaslr' check
KASLR is enabled by default.
Alexander Popov [Sun, 2 Oct 2022 11:27:03 +0000 (14:27 +0300)]
Add the 'spectre_v2' check
Don't normalize this cmdline option.
Alexander Popov [Sun, 2 Oct 2022 11:23:19 +0000 (14:23 +0300)]
Add the 'nospectre_v2' check
Alexander Popov [Sun, 2 Oct 2022 11:04:10 +0000 (14:04 +0300)]
Change the reason for the 'nosmep' and 'nosmap' checks
SMEP and SMAP are enabled by default.
Alexander Popov [Sun, 2 Oct 2022 10:39:38 +0000 (13:39 +0300)]
Add the 'nospectre_v1' check
Alexander Popov [Sun, 2 Oct 2022 10:20:11 +0000 (13:20 +0300)]
Add the 'nopti' check
Alexander Popov [Sat, 24 Sep 2022 22:12:55 +0000 (01:12 +0300)]
Add the comments: CC_IS_GCC and CC_IS_CLANG exist since v4.18
Alexander Popov [Sat, 24 Sep 2022 21:51:25 +0000 (00:51 +0300)]
Add the UBSAN_LOCAL_BOUNDS check for Clang build
Explanations from the Linux kernel commit
6a6155f664e31c9be43cd:
When the kernel is compiled with Clang, -fsanitize=bounds expands to
-fsanitize=array-bounds and -fsanitize=local-bounds.
Enabling -fsanitize=local-bounds with Clang has the side-effect of
inserting traps.
That's why UBSAN_LOCAL_BOUNDS can enable the 'local-bounds' option
only when UBSAN_TRAP is enabled.
Alexander Popov [Sun, 18 Sep 2022 13:02:23 +0000 (16:02 +0300)]
Update the links to AOSP and GKI
Android Open Source Project (AOSP):
https://source.android.com/docs/setup/build/building-kernels
Android Generic Kernel Image (GKI):
https://source.android.com/docs/core/architecture/kernel/gki-release-builds
Also add the GKI config `android13-5.10`.
Thanks to @h0t for the idea.
Alexander Popov [Fri, 2 Sep 2022 15:14:28 +0000 (18:14 +0300)]
Update the README
Alexander Popov [Fri, 2 Sep 2022 15:04:04 +0000 (18:04 +0300)]
Detect the compiler used for the kernel compilation
Alexander Popov [Fri, 2 Sep 2022 14:22:15 +0000 (17:22 +0300)]
Don't use CONFIG_CC_IS_GCC in the checks (it was introduced only in v4.18)
Alexander Popov [Fri, 2 Sep 2022 11:50:39 +0000 (14:50 +0300)]
Move get-nix-kconfig.py to kconfig_hardened_check/config_files/distros
This script is still waiting for fixes from NixOS folks:
Issue #63
PR #64
Alexander Popov [Fri, 2 Sep 2022 11:38:18 +0000 (14:38 +0300)]
Fix the X86_SMAP check: it is enabled by default since v5.19
Refers to the issue #71
Alexander Popov [Fri, 2 Sep 2022 11:30:38 +0000 (14:30 +0300)]
Check the nosmap and nosmep cmdline parameters