+ - no `-m` argument for the default output mode (see the example below)
+ - `-m verbose` for printing additional info:
+ - config options without a corresponding check
+ - internals of complex checks with AND/OR, like this:
+```
+-------------------------------------------------------------------------------------------
+ <<< OR >>>
+CONFIG_STRICT_DEVMEM | y |defconfig | cut_attack_surface
+CONFIG_DEVMEM | is not set | kspp | cut_attack_surface
+-------------------------------------------------------------------------------------------
+```
+ - `-m show_fail` for showing only the failed checks
+ - `-m show_ok` for showing only the successful checks
+ - `-m json` for printing the results in JSON format (for combining `kconfig-hardened-check` with other tools)
+
+## Example output for `Fedora 34` kernel configuration
+```
+$ ./bin/kconfig-hardened-check -c /boot/config-5.19.14-200.fc36.x86_64 -l /proc/cmdline
+[+] Kconfig file to check: /boot/config-5.19.14-200.fc36.x86_64
+[+] Kernel cmdline file to check: /proc/cmdline
+[+] Detected architecture: X86_64
+[+] Detected kernel version: 5.19
+[+] Detected compiler: GCC 120201
+=========================================================================================================================
+ option name | type |desired val | decision | reason | check result
+=========================================================================================================================
+CONFIG_BUG |kconfig| y |defconfig | self_protection | OK
+CONFIG_SLUB_DEBUG |kconfig| y |defconfig | self_protection | OK
+CONFIG_GCC_PLUGINS |kconfig| y |defconfig | self_protection | OK
+CONFIG_STACKPROTECTOR |kconfig| y |defconfig | self_protection | OK
+CONFIG_STACKPROTECTOR_STRONG |kconfig| y |defconfig | self_protection | FAIL: "is not set"
+CONFIG_STRICT_KERNEL_RWX |kconfig| y |defconfig | self_protection | OK
+CONFIG_STRICT_MODULE_RWX |kconfig| y |defconfig | self_protection | OK
+CONFIG_REFCOUNT_FULL |kconfig| y |defconfig | self_protection | OK: version >= 5.5
+CONFIG_THREAD_INFO_IN_TASK |kconfig| y |defconfig | self_protection | OK
+CONFIG_IOMMU_SUPPORT |kconfig| y |defconfig | self_protection | OK
+CONFIG_RANDOMIZE_BASE |kconfig| y |defconfig | self_protection | OK
+CONFIG_VMAP_STACK |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_MCE |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_MCE_INTEL |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_MCE_AMD |kconfig| y |defconfig | self_protection | OK
+CONFIG_MICROCODE |kconfig| y |defconfig | self_protection | OK
+CONFIG_RETPOLINE |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK: version >= 5.19
+CONFIG_SYN_COOKIES |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_UMIP |kconfig| y |defconfig | self_protection | OK
+CONFIG_PAGE_TABLE_ISOLATION |kconfig| y |defconfig | self_protection | OK
+CONFIG_RANDOMIZE_MEMORY |kconfig| y |defconfig | self_protection | OK
+CONFIG_INTEL_IOMMU |kconfig| y |defconfig | self_protection | OK
+CONFIG_AMD_IOMMU |kconfig| y |defconfig | self_protection | OK
+CONFIG_BUG_ON_DATA_CORRUPTION |kconfig| y | kspp | self_protection | OK
+CONFIG_DEBUG_WX |kconfig| y | kspp | self_protection | OK
+CONFIG_SCHED_STACK_END_CHECK |kconfig| y | kspp | self_protection | OK
+CONFIG_SLAB_FREELIST_HARDENED |kconfig| y | kspp | self_protection | OK
+CONFIG_SLAB_FREELIST_RANDOM |kconfig| y | kspp | self_protection | OK
+CONFIG_SHUFFLE_PAGE_ALLOCATOR |kconfig| y | kspp | self_protection | OK
+CONFIG_FORTIFY_SOURCE |kconfig| y | kspp | self_protection | OK
+CONFIG_DEBUG_LIST |kconfig| y | kspp | self_protection | OK
+CONFIG_DEBUG_VIRTUAL |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_DEBUG_SG |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_DEBUG_NOTIFIERS |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_INIT_ON_ALLOC_DEFAULT_ON |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_KFENCE |kconfig| y | kspp | self_protection | OK
+CONFIG_WERROR |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_IOMMU_DEFAULT_DMA_STRICT |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_IOMMU_DEFAULT_PASSTHROUGH |kconfig| is not set | kspp | self_protection | OK
+CONFIG_ZERO_CALL_USED_REGS |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_HW_RANDOM_TPM |kconfig| y | kspp | self_protection | OK
+CONFIG_STATIC_USERMODEHELPER |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_SCHED_CORE |kconfig| y | kspp | self_protection | OK
+CONFIG_RANDSTRUCT_FULL |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_RANDSTRUCT_PERFORMANCE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_RANDSTRUCT_FULL not "y"
+CONFIG_HARDENED_USERCOPY |kconfig| y | kspp | self_protection | OK
+CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK: not found
+CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK: not found
+CONFIG_MODULE_SIG |kconfig| y | kspp | self_protection | OK
+CONFIG_MODULE_SIG_ALL |kconfig| y | kspp | self_protection | OK
+CONFIG_MODULE_SIG_SHA512 |kconfig| y | kspp | self_protection | OK
+CONFIG_MODULE_SIG_FORCE |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_INIT_STACK_ALL_ZERO |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_INIT_ON_FREE_DEFAULT_ON |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_EFI_DISABLE_PCI_DMA |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_RESET_ATTACK_MITIGATION |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_UBSAN_BOUNDS |kconfig| y | kspp | self_protection | FAIL: not found
+CONFIG_UBSAN_LOCAL_BOUNDS |kconfig| y | kspp | self_protection | FAIL: not found
+CONFIG_UBSAN_TRAP |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS not "y"
+CONFIG_UBSAN_SANITIZE_ALL |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS not "y"
+CONFIG_GCC_PLUGIN_STACKLEAK |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_STACKLEAK_METRICS |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK not "y"
+CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK not "y"
+CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection | OK
+CONFIG_CFI_CLANG |kconfig| y | kspp | self_protection | FAIL: not found
+CONFIG_CFI_PERMISSIVE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_CFI_CLANG not "y"
+CONFIG_DEFAULT_MMAP_MIN_ADDR |kconfig| 65536 | kspp | self_protection | OK
+CONFIG_INTEL_IOMMU_DEFAULT_ON |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_SLS |kconfig| y | kspp | self_protection | OK
+CONFIG_INTEL_IOMMU_SVM |kconfig| y | kspp | self_protection | OK
+CONFIG_AMD_IOMMU_V2 |kconfig| y | kspp | self_protection | FAIL: "m"
+CONFIG_SLAB_MERGE_DEFAULT |kconfig| is not set | clipos | self_protection | OK
+CONFIG_SECURITY |kconfig| y |defconfig | security_policy | OK
+CONFIG_SECURITY_YAMA |kconfig| y | kspp | security_policy | OK
+CONFIG_SECURITY_LANDLOCK |kconfig| y | kspp | security_policy | OK
+CONFIG_SECURITY_SELINUX_DISABLE |kconfig| is not set | kspp | security_policy | OK
+CONFIG_SECURITY_SELINUX_BOOTPARAM |kconfig| is not set | kspp | security_policy | FAIL: "y"
+CONFIG_SECURITY_SELINUX_DEVELOP |kconfig| is not set | kspp | security_policy | FAIL: "y"
+CONFIG_SECURITY_LOCKDOWN_LSM |kconfig| y | kspp | security_policy | OK
+CONFIG_SECURITY_LOCKDOWN_LSM_EARLY |kconfig| y | kspp | security_policy | OK
+CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY|kconfig| y | kspp | security_policy | FAIL: "is not set"
+CONFIG_SECURITY_WRITABLE_HOOKS |kconfig| is not set | kspp | security_policy | OK: not found
+CONFIG_BPF_UNPRIV_DEFAULT_OFF |kconfig| y |defconfig |cut_attack_surface| OK
+CONFIG_SECCOMP |kconfig| y |defconfig |cut_attack_surface| OK
+CONFIG_SECCOMP_FILTER |kconfig| y |defconfig |cut_attack_surface| OK
+CONFIG_STRICT_DEVMEM |kconfig| y |defconfig |cut_attack_surface| OK
+CONFIG_SECURITY_DMESG_RESTRICT |kconfig| y | kspp |cut_attack_surface| FAIL: "is not set"
+CONFIG_ACPI_CUSTOM_METHOD |kconfig| is not set | kspp |cut_attack_surface| OK
+CONFIG_COMPAT_BRK |kconfig| is not set | kspp |cut_attack_surface| OK
+CONFIG_DEVKMEM |kconfig| is not set | kspp |cut_attack_surface| OK: not found
+CONFIG_COMPAT_VDSO |kconfig| is not set | kspp |cut_attack_surface| OK
+CONFIG_BINFMT_MISC |kconfig| is not set | kspp |cut_attack_surface| FAIL: "m"
+CONFIG_INET_DIAG |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_KEXEC |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_PROC_KCORE |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_LEGACY_PTYS |kconfig| is not set | kspp |cut_attack_surface| OK
+CONFIG_HIBERNATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_IA32_EMULATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK: not found
+CONFIG_MODIFY_LDT_SYSCALL |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_OABI_COMPAT |kconfig| is not set | kspp |cut_attack_surface| OK: not found
+CONFIG_X86_MSR |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_MODULES |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_DEVMEM |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_IO_STRICT_DEVMEM |kconfig| y | kspp |cut_attack_surface| OK
+CONFIG_LDISC_AUTOLOAD |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
+CONFIG_LEGACY_VSYSCALL_NONE |kconfig| y | kspp |cut_attack_surface| FAIL: "is not set"
+CONFIG_ZSMALLOC_STAT |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_PAGE_OWNER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_DEBUG_KMEMLEAK |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_BINFMT_AOUT |kconfig| is not set | grsec |cut_attack_surface| OK: not found
+CONFIG_KPROBE_EVENTS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_UPROBE_EVENTS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_GENERIC_TRACER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_FUNCTION_TRACER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_STACK_TRACER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_HIST_TRIGGERS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_BLK_DEV_IO_TRACE |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_PROC_VMCORE |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_PROC_PAGE_MONITOR |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_USELIB |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_CHECKPOINT_RESTORE |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_USERFAULTFD |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_HWPOISON_INJECT |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
+CONFIG_MEM_SOFT_DIRTY |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_DEVPORT |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_DEBUG_FS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_NOTIFIER_ERROR_INJECTION |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: not found
+CONFIG_PUNIT_ATOM_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_ACPI_CONFIGFS |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_EDAC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_DRM_I915_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK: not found
+CONFIG_BCACHE_CLOSURES_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_DVB_C8SECTPFE |kconfig| is not set | grsec |cut_attack_surface| OK: not found
+CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_IO_URING |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_KCMP |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_RSEQ |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_LATENCYTOP |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_KCOV |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_PROVIDE_OHCI1394_DMA_INIT |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_SUNRPC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
+CONFIG_PTDUMP_DEBUGFS |kconfig| is not set | grsec |cut_attack_surface| OK
+CONFIG_DRM_LEGACY |kconfig| is not set |maintainer|cut_attack_surface| OK
+CONFIG_FB |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
+CONFIG_VT |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
+CONFIG_BLK_DEV_FD |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "m"
+CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK
+CONFIG_AIO |kconfig| is not set |grapheneos|cut_attack_surface| FAIL: "y"
+CONFIG_STAGING |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_KSM |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_KALLSYMS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_X86_VSYSCALL_EMULATION |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_MAGIC_SYSRQ |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_KEXEC_FILE |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_USER_NS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_X86_CPUID |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_X86_IOPL_IOPERM |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_ACPI_TABLE_UPGRADE |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_EFI_CUSTOM_SSDT_OVERLAYS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_COREDUMP |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
+CONFIG_X86_INTEL_TSX_MODE_OFF |kconfig| y | clipos |cut_attack_surface| OK
+CONFIG_BPF_SYSCALL |kconfig| is not set | lockdown |cut_attack_surface| FAIL: "y"
+CONFIG_EFI_TEST |kconfig| is not set | lockdown |cut_attack_surface| FAIL: "m"
+CONFIG_MMIOTRACE_TEST |kconfig| is not set | lockdown |cut_attack_surface| OK
+CONFIG_KPROBES |kconfig| is not set | lockdown |cut_attack_surface| FAIL: "y"
+CONFIG_TRIM_UNUSED_KSYMS |kconfig| y | my |cut_attack_surface| FAIL: not found
+CONFIG_MMIOTRACE |kconfig| is not set | my |cut_attack_surface| FAIL: "y"
+CONFIG_LIVEPATCH |kconfig| is not set | my |cut_attack_surface| FAIL: "y"
+CONFIG_IP_DCCP |kconfig| is not set | my |cut_attack_surface| OK
+CONFIG_IP_SCTP |kconfig| is not set | my |cut_attack_surface| FAIL: "m"
+CONFIG_FTRACE |kconfig| is not set | my |cut_attack_surface| FAIL: "y"
+CONFIG_VIDEO_VIVID |kconfig| is not set | my |cut_attack_surface| OK: not found
+CONFIG_INPUT_EVBUG |kconfig| is not set | my |cut_attack_surface| OK
+CONFIG_KGDB |kconfig| is not set | my |cut_attack_surface| FAIL: "y"
+CONFIG_INTEGRITY |kconfig| y |defconfig | harden_userspace | OK
+CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 | clipos | harden_userspace | FAIL: "28"
+nosmep |cmdline| is not set |defconfig | self_protection | OK: not found
+nosmap |cmdline| is not set |defconfig | self_protection | OK: not found
+nokaslr |cmdline| is not set |defconfig | self_protection | OK: not found
+nopti |cmdline| is not set |defconfig | self_protection | OK: not found
+nospectre_v1 |cmdline| is not set |defconfig | self_protection | OK: not found
+nospectre_v2 |cmdline| is not set |defconfig | self_protection | OK: not found
+rodata |cmdline| 1 |defconfig | self_protection | OK: rodata not found
+init_on_alloc |cmdline| 1 | kspp | self_protection | FAIL: not found
+init_on_free |cmdline| 1 | kspp | self_protection | FAIL: not found
+slab_nomerge |cmdline| | kspp | self_protection | OK: CONFIG_SLAB_MERGE_DEFAULT "is not set"
+iommu.strict |cmdline| 1 | kspp | self_protection | FAIL: not found
+iommu.passthrough |cmdline| 0 | kspp | self_protection | OK: CONFIG_IOMMU_DEFAULT_PASSTHROUGH "is not set"
+hardened_usercopy |cmdline| 1 | kspp | self_protection | OK: CONFIG_HARDENED_USERCOPY "y"
+slab_common.usercopy_fallback |cmdline| 0 | kspp | self_protection | OK: CONFIG_HARDENED_USERCOPY_FALLBACK not found
+randomize_kstack_offset |cmdline| 1 | kspp | self_protection | OK: CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT "y"
+pti |cmdline| on | kspp | self_protection | FAIL: not found
+page_alloc.shuffle |cmdline| 1 | clipos | self_protection | FAIL: not found
+spectre_v2 |cmdline| on | clipos | self_protection | FAIL: not found
+vsyscall |cmdline| none | kspp |cut_attack_surface| FAIL: not found
+debugfs |cmdline| off | grsec |cut_attack_surface| FAIL: not found
+
+[+] Config check is finished: 'OK' - 101 / 'FAIL' - 101
+```
+
+## kconfig-hardened-check versioning
+
+I usually update the kernel security hardening recommendations every few kernel releases.
+
+So the version of `kconfig-hardened-check` is associated with the corresponding version of the kernel.
+
+The version format is: __[major_number].[kernel_version].[kernel_patchlevel]__
+
+
+## Questions and answers
+
+__Q:__ How all these kernel parameters influence the Linux kernel security?
+
+__A:__ To answer this question, you can use the `kconfig-hardened-check` [sources of recommendations][24]
+and the [Linux Kernel Defence Map][4] with its references.
+
+<br />