mirror of
https://0xacab.org/optout/plague-kernel.git
synced 2024-07-01 00:51:28 +00:00
239 lines
21 KiB
Markdown
239 lines
21 KiB
Markdown
### Steps to create
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1. Set the KVER variable to which version you want to obtain from Anthraxx's linux-hardened repository
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2. Run `bash kernel_build.sh`
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### Steps to import/configure release
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- Built into PlagueOS installer
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### Troubleshooting:
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- `lsinitrd -v /boot/initramfs-5.10."$KVER"-hardened1_1.img`
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#### Additional Resources:
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- https://www.kernel.org/doc/html/v5.10/
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- https://github.com/Whonix/hardened-kernel
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- https://docs.clip-os.org/clipos/kernel.html
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- https://github.com/anthraxx/linux-hardened
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- https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project
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- https://notabug.org/anonymous-lestat/Void-Hardened-Kernel
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- https://madaidans-insecurities.github.io/guides/linux-hardening.html#kernel
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### Trimming Efforts
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- While linux-hardened security patchsets along with kernel configurations are notable for this kernel project, the core purpose was to practice minimalism by reducing the size of the linux kernel, thereby cutting attack surface. This is not a trivial thing to record, therefore we are displaying the size purely as a point of comparison.
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| |PlagueOS (plague-kernel) |Whonix (LTS)|
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|--- | --- | ---|
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|Size (compressed)|159.2 MB |285.6 MB|
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### Current kconfig-hardened-check results
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#### Successes
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Option | Desired Value | Source | Reason | Result |
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|--- | --- | --- | --- | --- |
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CONFIG_BUG |kconfig| y |defconfig | self_protection | OK
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CONFIG_THREAD_INFO_IN_TASK |kconfig| y |defconfig | self_protection | OK
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CONFIG_IOMMU_SUPPORT |kconfig| y |defconfig | self_protection | OK
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CONFIG_STACKPROTECTOR |kconfig| y |defconfig | self_protection | OK
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CONFIG_STACKPROTECTOR_STRONG |kconfig| y |defconfig | self_protection | OK
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CONFIG_STRICT_KERNEL_RWX |kconfig| y |defconfig | self_protection | OK
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CONFIG_STRICT_MODULE_RWX |kconfig| y |defconfig | self_protection | OK
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CONFIG_REFCOUNT_FULL |kconfig| y |defconfig | self_protection | OK: version >= 5.5
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CONFIG_INIT_STACK_ALL_ZERO |kconfig| y |defconfig | self_protection | OK
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CONFIG_RANDOMIZE_BASE |kconfig| y |defconfig | self_protection | OK
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CONFIG_VMAP_STACK |kconfig| y |defconfig | self_protection | OK
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CONFIG_SPECULATION_MITIGATIONS |kconfig| y |defconfig | self_protection | OK
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CONFIG_DEBUG_WX |kconfig| y |defconfig | self_protection | OK
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CONFIG_WERROR |kconfig| y |defconfig | self_protection | OK
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CONFIG_X86_MCE |kconfig| y |defconfig | self_protection | OK
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CONFIG_X86_MCE_INTEL |kconfig| y |defconfig | self_protection | OK
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CONFIG_X86_MCE_AMD |kconfig| y |defconfig | self_protection | OK
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CONFIG_RETPOLINE |kconfig| y |defconfig | self_protection | OK
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CONFIG_SYN_COOKIES |kconfig| y |defconfig | self_protection | OK
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CONFIG_MICROCODE |kconfig| y |defconfig | self_protection | OK
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CONFIG_MICROCODE_INTEL |kconfig| y |defconfig | self_protection | OK: CONFIG_MICROCODE is "y"
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CONFIG_MICROCODE_AMD |kconfig| y |defconfig | self_protection | OK: CONFIG_MICROCODE is "y"
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CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK: version >= 5.19
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CONFIG_X86_UMIP |kconfig| y |defconfig | self_protection | OK
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CONFIG_PAGE_TABLE_ISOLATION |kconfig| y |defconfig | self_protection | OK
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CONFIG_RANDOMIZE_MEMORY |kconfig| y |defconfig | self_protection | OK
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CONFIG_X86_KERNEL_IBT |kconfig| y |defconfig | self_protection | OK
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CONFIG_CPU_SRSO |kconfig| y |defconfig | self_protection | OK
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CONFIG_INTEL_IOMMU |kconfig| y |defconfig | self_protection | OK
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CONFIG_AMD_IOMMU |kconfig| y |defconfig | self_protection | OK
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CONFIG_BUG_ON_DATA_CORRUPTION |kconfig| y | kspp | self_protection | OK
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CONFIG_SLAB_FREELIST_HARDENED |kconfig| y | kspp | self_protection | OK
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CONFIG_SLAB_FREELIST_RANDOM |kconfig| y | kspp | self_protection | OK
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CONFIG_SHUFFLE_PAGE_ALLOCATOR |kconfig| y | kspp | self_protection | OK
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CONFIG_FORTIFY_SOURCE |kconfig| y | kspp | self_protection | OK
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CONFIG_DEBUG_LIST |kconfig| y | kspp | self_protection | OK
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CONFIG_INIT_ON_ALLOC_DEFAULT_ON |kconfig| y | kspp | self_protection | OK
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CONFIG_SCHED_CORE |kconfig| y | kspp | self_protection | OK
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CONFIG_SCHED_STACK_END_CHECK |kconfig| y | kspp | self_protection | OK
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CONFIG_KFENCE |kconfig| y | kspp | self_protection | OK
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CONFIG_KFENCE_SAMPLE_INTERVAL |kconfig| is not off | my | self_protection | OK: is not off, "100"
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CONFIG_HARDENED_USERCOPY |kconfig| y | kspp | self_protection | OK
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CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK: is not found
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CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK: is not found
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CONFIG_MODULE_SIG |kconfig| y | kspp | self_protection | OK
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CONFIG_MODULE_SIG_ALL |kconfig| y | kspp | self_protection | OK
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CONFIG_MODULE_SIG_SHA512 |kconfig| y | kspp | self_protection | OK
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CONFIG_MODULE_SIG_FORCE |kconfig| y | kspp | self_protection | OK
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CONFIG_INIT_ON_FREE_DEFAULT_ON |kconfig| y | kspp | self_protection | OK
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CONFIG_EFI_DISABLE_PCI_DMA |kconfig| y | kspp | self_protection | OK
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CONFIG_RESET_ATTACK_MITIGATION |kconfig| y | kspp | self_protection | OK
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CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection | OK
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CONFIG_HW_RANDOM_TPM |kconfig| y | kspp | self_protection | OK
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CONFIG_DEFAULT_MMAP_MIN_ADDR |kconfig| 65536 | kspp | self_protection | OK
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CONFIG_IOMMU_DEFAULT_DMA_STRICT |kconfig| y | kspp | self_protection | OK
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CONFIG_IOMMU_DEFAULT_PASSTHROUGH |kconfig| is not set | kspp | self_protection | OK
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CONFIG_INTEL_IOMMU_DEFAULT_ON |kconfig| y | kspp | self_protection | OK
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CONFIG_SLS |kconfig| y | kspp | self_protection | OK
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CONFIG_INTEL_IOMMU_SVM |kconfig| y | kspp | self_protection | OK
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CONFIG_AMD_IOMMU_V2 |kconfig| y | kspp | self_protection | OK
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CONFIG_SLAB_MERGE_DEFAULT |kconfig| is not set | clipos | self_protection | OK
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CONFIG_LIST_HARDENED |kconfig| y | my | self_protection | OK
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CONFIG_RANDOM_KMALLOC_CACHES |kconfig| y | my | self_protection | OK
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CONFIG_SECURITY |kconfig| y |defconfig | security_policy | OK
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CONFIG_SECURITY_YAMA |kconfig| y | kspp | security_policy | OK
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CONFIG_SECURITY_LANDLOCK |kconfig| y | kspp | security_policy | OK
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CONFIG_SECURITY_SELINUX_DISABLE |kconfig| is not set | kspp | security_policy | OK: is not found
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CONFIG_SECURITY_LOCKDOWN_LSM |kconfig| y | kspp | security_policy | OK
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CONFIG_SECURITY_LOCKDOWN_LSM_EARLY |kconfig| y | kspp | security_policy | OK
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CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY|kconfig| y | kspp | security_policy | OK
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CONFIG_SECURITY_WRITABLE_HOOKS |kconfig| is not set | kspp | security_policy | OK: is not found
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CONFIG_SECURITY_SELINUX_DEBUG |kconfig| is not set | my | security_policy | OK
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CONFIG_SECURITY_SELINUX |kconfig| y | my | security_policy | OK
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CONFIG_SECCOMP |kconfig| y |defconfig |cut_attack_surface| OK
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CONFIG_SECCOMP_FILTER |kconfig| y |defconfig |cut_attack_surface| OK
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CONFIG_BPF_UNPRIV_DEFAULT_OFF |kconfig| y |defconfig |cut_attack_surface| OK
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CONFIG_STRICT_DEVMEM |kconfig| y |defconfig |cut_attack_surface| OK: CONFIG_DEVMEM is "is not set"
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CONFIG_X86_INTEL_TSX_MODE_OFF |kconfig| y |defconfig |cut_attack_surface| OK
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CONFIG_SECURITY_DMESG_RESTRICT |kconfig| y | kspp |cut_attack_surface| OK
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CONFIG_ACPI_CUSTOM_METHOD |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_COMPAT_BRK |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_DEVKMEM |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_INET_DIAG |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_KEXEC |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_PROC_KCORE |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_LEGACY_PTYS |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_HIBERNATION |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_COMPAT |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_IA32_EMULATION |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_X86_X32_ABI |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_MODIFY_LDT_SYSCALL |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_OABI_COMPAT |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_X86_MSR |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_LEGACY_TIOCSTI |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_DEVMEM |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_IO_STRICT_DEVMEM |kconfig| y | kspp |cut_attack_surface| OK: CONFIG_DEVMEM is "is not set"
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CONFIG_LDISC_AUTOLOAD |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_COMPAT_VDSO |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
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CONFIG_X86_VSYSCALL_EMULATION |kconfig| is not set | kspp |cut_attack_surface| OK
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CONFIG_ZSMALLOC_STAT |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_PAGE_OWNER |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_DEBUG_KMEMLEAK |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_BINFMT_AOUT |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_KPROBE_EVENTS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_UPROBE_EVENTS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_GENERIC_TRACER |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_FUNCTION_TRACER |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_STACK_TRACER |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_HIST_TRIGGERS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_BLK_DEV_IO_TRACE |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_PROC_VMCORE |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_PROC_PAGE_MONITOR |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_USELIB |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_CHECKPOINT_RESTORE |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_USERFAULTFD |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_HWPOISON_INJECT |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_MEM_SOFT_DIRTY |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_DEVPORT |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_DEBUG_FS |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_NOTIFIER_ERROR_INJECTION |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_PUNIT_ATOM_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_ACPI_CONFIGFS |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_EDAC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_DRM_I915_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_BCACHE_CLOSURES_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_DVB_C8SECTPFE |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_IO_URING |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_RSEQ |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_LATENCYTOP |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_KCOV |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_PROVIDE_OHCI1394_DMA_INIT |kconfig| is not set | grsec |cut_attack_surface| OK
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CONFIG_SUNRPC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_PTDUMP_DEBUGFS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_DRM_LEGACY |kconfig| is not set |maintainer|cut_attack_surface| OK
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CONFIG_BLK_DEV_FD |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found
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CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found
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CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found
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CONFIG_STAGING |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_KSM |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_KALLSYMS |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_MAGIC_SYSRQ |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_KEXEC_FILE |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_X86_CPUID |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_X86_IOPL_IOPERM |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_ACPI_TABLE_UPGRADE |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_EFI_CUSTOM_SSDT_OVERLAYS |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_AIO |kconfig| is not set | clipos |cut_attack_surface| OK
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CONFIG_EFI_TEST |kconfig| is not set | lockdown |cut_attack_surface| OK
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CONFIG_MMIOTRACE_TEST |kconfig| is not set | lockdown |cut_attack_surface| OK: is not found
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CONFIG_KPROBES |kconfig| is not set | lockdown |cut_attack_surface| OK
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CONFIG_MMIOTRACE |kconfig| is not set | my |cut_attack_surface| OK: is not found
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CONFIG_LIVEPATCH |kconfig| is not set | my |cut_attack_surface| OK: is not found
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CONFIG_IP_DCCP |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_IP_SCTP |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_FTRACE |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_VIDEO_VIVID |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_INPUT_EVBUG |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_KGDB |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_CORESIGHT |kconfig| is not set | my |cut_attack_surface| OK: is not found
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CONFIG_XFS_SUPPORT_V4 |kconfig| is not set | my |cut_attack_surface| OK: is not found
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CONFIG_TRIM_UNUSED_KSYMS |kconfig| y | my |cut_attack_surface| OK
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CONFIG_MODULE_FORCE_LOAD |kconfig| is not set | my |cut_attack_surface| OK
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CONFIG_COREDUMP |kconfig| is not set | clipos | harden_userspace | OK
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CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 | my | harden_userspace | OK
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#### Fails
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Option | Desired Value | Source | Reason | Result |
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|--- | --- | --- | --- | --- |
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CONFIG_SLUB_DEBUG |kconfig| y |defconfig | self_protection | FAIL: "is not set"
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CONFIG_GCC_PLUGINS |kconfig| y |defconfig | self_protection | FAIL: is not found
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CONFIG_DEBUG_VIRTUAL |kconfig| y | kspp | self_protection | FAIL: "is not set"
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CONFIG_DEBUG_SG |kconfig| y | kspp | self_protection | FAIL: "is not set"
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CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: is not found
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CONFIG_STATIC_USERMODEHELPER |kconfig| y | kspp | self_protection | FAIL: "is not set"
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CONFIG_DEBUG_NOTIFIERS |kconfig| y | kspp | self_protection | FAIL: "is not set"
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CONFIG_RANDSTRUCT_FULL |kconfig| y | kspp | self_protection | FAIL: is not found
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CONFIG_RANDSTRUCT_PERFORMANCE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_RANDSTRUCT_FULL is not "y"
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CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y"
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CONFIG_UBSAN_BOUNDS |kconfig| y | kspp | self_protection | FAIL: is not found
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CONFIG_UBSAN_LOCAL_BOUNDS |kconfig| y | kspp | self_protection | FAIL: is not found
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CONFIG_UBSAN_TRAP |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS is not "y"
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CONFIG_UBSAN_SANITIZE_ALL |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS is not "y"
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CONFIG_GCC_PLUGIN_STACKLEAK |kconfig| y | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y"
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CONFIG_STACKLEAK_METRICS |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y"
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CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y"
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CONFIG_CFI_CLANG |kconfig| y | kspp | self_protection | FAIL: is not found
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CONFIG_CFI_PERMISSIVE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_CFI_CLANG is not "y"
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CONFIG_SECURITY_SELINUX_BOOTPARAM |kconfig| is not set | kspp | security_policy | FAIL: "y"
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CONFIG_SECURITY_SELINUX_DEVELOP |kconfig| is not set | kspp | security_policy | FAIL: "y"
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CONFIG_BINFMT_MISC |kconfig| is not set | kspp |cut_attack_surface| FAIL: "m"
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CONFIG_MODULES |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
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CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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CONFIG_KCMP |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
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CONFIG_FB |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
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CONFIG_VT |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
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CONFIG_USER_NS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
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CONFIG_BPF_SYSCALL |kconfig| is not set | lockdown |cut_attack_surface| FAIL: "y"
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```
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Totals: 'OK' - 148 / 'FAIL' - 16
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