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optout 6503ac76e7
Updated kconfig for 6.6.13 linux-hardened
2024-01-25 06:25:22 +00:00
5.10-hardened.config Upgraded kernel config / created config for 5.15 / updated steps 2022-10-27 16:01:46 +00:00
5.15-hardened.config Upgraded kernel config / created config for 5.15 / updated steps 2022-10-27 16:01:46 +00:00
6.6.13-hardened.config Updated kconfig for 6.6.13 linux-hardened 2024-01-25 06:25:22 +00:00
kernel_build.sh Updated URI for kernel config to 0xacab.org 2022-12-02 19:49:31 +00:00
README.md Updated kconfig for 6.6.13 linux-hardened 2024-01-25 06:22:56 +00:00

README.md

Steps to create

  1. Set the KVER variable to which version you want to obtain from Anthraxx's linux-hardened repository
  2. Run bash kernel_build.sh

Steps to import/configure release

  • Built into PlagueOS installer

Troubleshooting:

  • lsinitrd -v /boot/initramfs-5.10."$KVER"-hardened1_1.img

Additional Resources:

Trimming Efforts

  • 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.
PlagueOS (plague-kernel) Whonix (LTS)
Size (compressed) 159.2 MB 285.6 MB

Current kconfig-hardened-check results

Successes

Option Desired Value Source Reason Result
CONFIG_BUG kconfig y defconfig self_protection
CONFIG_THREAD_INFO_IN_TASK kconfig y defconfig self_protection
CONFIG_IOMMU_SUPPORT kconfig y defconfig self_protection
CONFIG_STACKPROTECTOR kconfig y defconfig self_protection
CONFIG_STACKPROTECTOR_STRONG kconfig y defconfig self_protection
CONFIG_STRICT_KERNEL_RWX kconfig y defconfig self_protection
CONFIG_STRICT_MODULE_RWX kconfig y defconfig self_protection
CONFIG_REFCOUNT_FULL kconfig y defconfig self_protection
CONFIG_INIT_STACK_ALL_ZERO kconfig y defconfig self_protection
CONFIG_RANDOMIZE_BASE kconfig y defconfig self_protection
CONFIG_VMAP_STACK kconfig y defconfig self_protection
CONFIG_SPECULATION_MITIGATIONS kconfig y defconfig self_protection
CONFIG_DEBUG_WX kconfig y defconfig self_protection
CONFIG_WERROR kconfig y defconfig self_protection
CONFIG_X86_MCE kconfig y defconfig self_protection
CONFIG_X86_MCE_INTEL kconfig y defconfig self_protection
CONFIG_X86_MCE_AMD kconfig y defconfig self_protection
CONFIG_RETPOLINE kconfig y defconfig self_protection
CONFIG_SYN_COOKIES kconfig y defconfig self_protection
CONFIG_MICROCODE kconfig y defconfig self_protection
CONFIG_MICROCODE_INTEL kconfig y defconfig self_protection
CONFIG_MICROCODE_AMD kconfig y defconfig self_protection
CONFIG_X86_SMAP kconfig y defconfig self_protection
CONFIG_X86_UMIP kconfig y defconfig self_protection
CONFIG_PAGE_TABLE_ISOLATION kconfig y defconfig self_protection
CONFIG_RANDOMIZE_MEMORY kconfig y defconfig self_protection
CONFIG_X86_KERNEL_IBT kconfig y defconfig self_protection
CONFIG_CPU_SRSO kconfig y defconfig self_protection
CONFIG_INTEL_IOMMU kconfig y defconfig self_protection
CONFIG_AMD_IOMMU kconfig y defconfig self_protection
CONFIG_BUG_ON_DATA_CORRUPTION kconfig y kspp self_protection
CONFIG_SLAB_FREELIST_HARDENED kconfig y kspp self_protection
CONFIG_SLAB_FREELIST_RANDOM kconfig y kspp self_protection
CONFIG_SHUFFLE_PAGE_ALLOCATOR kconfig y kspp self_protection
CONFIG_FORTIFY_SOURCE kconfig y kspp self_protection
CONFIG_DEBUG_LIST kconfig y kspp self_protection
CONFIG_INIT_ON_ALLOC_DEFAULT_ON kconfig y kspp self_protection
CONFIG_SCHED_CORE kconfig y kspp self_protection
CONFIG_SCHED_STACK_END_CHECK kconfig y kspp self_protection
CONFIG_KFENCE kconfig y kspp self_protection
CONFIG_KFENCE_SAMPLE_INTERVAL kconfig is not off my self_protection
CONFIG_HARDENED_USERCOPY kconfig y kspp self_protection
CONFIG_HARDENED_USERCOPY_FALLBACK kconfig is not set kspp self_protection
CONFIG_HARDENED_USERCOPY_PAGESPAN kconfig is not set kspp self_protection
CONFIG_MODULE_SIG kconfig y kspp self_protection
CONFIG_MODULE_SIG_ALL kconfig y kspp self_protection
CONFIG_MODULE_SIG_SHA512 kconfig y kspp self_protection
CONFIG_MODULE_SIG_FORCE kconfig y kspp self_protection
CONFIG_INIT_ON_FREE_DEFAULT_ON kconfig y kspp self_protection
CONFIG_EFI_DISABLE_PCI_DMA kconfig y kspp self_protection
CONFIG_RESET_ATTACK_MITIGATION kconfig y kspp self_protection
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT kconfig y kspp self_protection
CONFIG_HW_RANDOM_TPM kconfig y kspp self_protection
CONFIG_DEFAULT_MMAP_MIN_ADDR kconfig 65536 kspp self_protection
CONFIG_IOMMU_DEFAULT_DMA_STRICT kconfig y kspp self_protection
CONFIG_IOMMU_DEFAULT_PASSTHROUGH kconfig is not set kspp self_protection
CONFIG_INTEL_IOMMU_DEFAULT_ON kconfig y kspp self_protection
CONFIG_SLS kconfig y kspp self_protection
CONFIG_INTEL_IOMMU_SVM kconfig y kspp self_protection
CONFIG_AMD_IOMMU_V2 kconfig y kspp self_protection
CONFIG_SLAB_MERGE_DEFAULT kconfig is not set clipos self_protection
CONFIG_LIST_HARDENED kconfig y my self_protection
CONFIG_RANDOM_KMALLOC_CACHES kconfig y my self_protection
CONFIG_SECURITY kconfig y defconfig security_policy
CONFIG_SECURITY_YAMA kconfig y kspp security_policy
CONFIG_SECURITY_LANDLOCK kconfig y kspp security_policy
CONFIG_SECURITY_SELINUX_DISABLE kconfig is not set kspp security_policy
CONFIG_SECURITY_LOCKDOWN_LSM kconfig y kspp security_policy
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY kconfig y kspp security_policy
CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY kconfig y kspp security_policy
CONFIG_SECURITY_WRITABLE_HOOKS kconfig is not set kspp security_policy
CONFIG_SECURITY_SELINUX_DEBUG kconfig is not set my security_policy
CONFIG_SECURITY_SELINUX kconfig y my security_policy
CONFIG_SECCOMP kconfig y defconfig cut_attack_surface
CONFIG_SECCOMP_FILTER kconfig y defconfig cut_attack_surface
CONFIG_BPF_UNPRIV_DEFAULT_OFF kconfig y defconfig cut_attack_surface
CONFIG_STRICT_DEVMEM kconfig y defconfig cut_attack_surface
CONFIG_X86_INTEL_TSX_MODE_OFF kconfig y defconfig cut_attack_surface
CONFIG_SECURITY_DMESG_RESTRICT kconfig y kspp cut_attack_surface
CONFIG_ACPI_CUSTOM_METHOD kconfig is not set kspp cut_attack_surface
CONFIG_COMPAT_BRK kconfig is not set kspp cut_attack_surface
CONFIG_DEVKMEM kconfig is not set kspp cut_attack_surface
CONFIG_INET_DIAG kconfig is not set kspp cut_attack_surface
CONFIG_KEXEC kconfig is not set kspp cut_attack_surface
CONFIG_PROC_KCORE kconfig is not set kspp cut_attack_surface
CONFIG_LEGACY_PTYS kconfig is not set kspp cut_attack_surface
CONFIG_HIBERNATION kconfig is not set kspp cut_attack_surface
CONFIG_COMPAT kconfig is not set kspp cut_attack_surface
CONFIG_IA32_EMULATION kconfig is not set kspp cut_attack_surface
CONFIG_X86_X32 kconfig is not set kspp cut_attack_surface
CONFIG_X86_X32_ABI kconfig is not set kspp cut_attack_surface
CONFIG_MODIFY_LDT_SYSCALL kconfig is not set kspp cut_attack_surface
CONFIG_OABI_COMPAT kconfig is not set kspp cut_attack_surface
CONFIG_X86_MSR kconfig is not set kspp cut_attack_surface
CONFIG_LEGACY_TIOCSTI kconfig is not set kspp cut_attack_surface
CONFIG_DEVMEM kconfig is not set kspp cut_attack_surface
CONFIG_IO_STRICT_DEVMEM kconfig y kspp cut_attack_surface
CONFIG_LDISC_AUTOLOAD kconfig is not set kspp cut_attack_surface
CONFIG_COMPAT_VDSO kconfig is not set kspp cut_attack_surface
CONFIG_X86_VSYSCALL_EMULATION kconfig is not set kspp cut_attack_surface
CONFIG_ZSMALLOC_STAT kconfig is not set grsec cut_attack_surface
CONFIG_PAGE_OWNER kconfig is not set grsec cut_attack_surface
CONFIG_DEBUG_KMEMLEAK kconfig is not set grsec cut_attack_surface
CONFIG_BINFMT_AOUT kconfig is not set grsec cut_attack_surface
CONFIG_KPROBE_EVENTS kconfig is not set grsec cut_attack_surface
CONFIG_UPROBE_EVENTS kconfig is not set grsec cut_attack_surface
CONFIG_GENERIC_TRACER kconfig is not set grsec cut_attack_surface
CONFIG_FUNCTION_TRACER kconfig is not set grsec cut_attack_surface
CONFIG_STACK_TRACER kconfig is not set grsec cut_attack_surface
CONFIG_HIST_TRIGGERS kconfig is not set grsec cut_attack_surface
CONFIG_BLK_DEV_IO_TRACE kconfig is not set grsec cut_attack_surface
CONFIG_PROC_VMCORE kconfig is not set grsec cut_attack_surface
CONFIG_PROC_PAGE_MONITOR kconfig is not set grsec cut_attack_surface
CONFIG_USELIB kconfig is not set grsec cut_attack_surface
CONFIG_CHECKPOINT_RESTORE kconfig is not set grsec cut_attack_surface
CONFIG_USERFAULTFD kconfig is not set grsec cut_attack_surface
CONFIG_HWPOISON_INJECT kconfig is not set grsec cut_attack_surface
CONFIG_MEM_SOFT_DIRTY kconfig is not set grsec cut_attack_surface
CONFIG_DEVPORT kconfig is not set grsec cut_attack_surface
CONFIG_DEBUG_FS kconfig is not set grsec cut_attack_surface
CONFIG_NOTIFIER_ERROR_INJECTION kconfig is not set grsec cut_attack_surface
CONFIG_FAIL_FUTEX kconfig is not set grsec cut_attack_surface
CONFIG_PUNIT_ATOM_DEBUG kconfig is not set grsec cut_attack_surface
CONFIG_ACPI_CONFIGFS kconfig is not set grsec cut_attack_surface
CONFIG_EDAC_DEBUG kconfig is not set grsec cut_attack_surface
CONFIG_DRM_I915_DEBUG kconfig is not set grsec cut_attack_surface
CONFIG_BCACHE_CLOSURES_DEBUG kconfig is not set grsec cut_attack_surface
CONFIG_DVB_C8SECTPFE kconfig is not set grsec cut_attack_surface
CONFIG_MTD_SLRAM kconfig is not set grsec cut_attack_surface
CONFIG_MTD_PHRAM kconfig is not set grsec cut_attack_surface
CONFIG_IO_URING kconfig is not set grsec cut_attack_surface
CONFIG_RSEQ kconfig is not set grsec cut_attack_surface
CONFIG_LATENCYTOP kconfig is not set grsec cut_attack_surface
CONFIG_KCOV kconfig is not set grsec cut_attack_surface
CONFIG_PROVIDE_OHCI1394_DMA_INIT kconfig is not set grsec cut_attack_surface
CONFIG_SUNRPC_DEBUG kconfig is not set grsec cut_attack_surface
CONFIG_PTDUMP_DEBUGFS kconfig is not set grsec cut_attack_surface
CONFIG_DRM_LEGACY kconfig is not set maintainer cut_attack_surface
CONFIG_BLK_DEV_FD kconfig is not set maintainer cut_attack_surface
CONFIG_BLK_DEV_FD_RAWCMD kconfig is not set maintainer cut_attack_surface
CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT kconfig is not set maintainer cut_attack_surface
CONFIG_STAGING kconfig is not set clipos cut_attack_surface
CONFIG_KSM kconfig is not set clipos cut_attack_surface
CONFIG_KALLSYMS kconfig is not set clipos cut_attack_surface
CONFIG_MAGIC_SYSRQ kconfig is not set clipos cut_attack_surface
CONFIG_KEXEC_FILE kconfig is not set clipos cut_attack_surface
CONFIG_X86_CPUID kconfig is not set clipos cut_attack_surface
CONFIG_X86_IOPL_IOPERM kconfig is not set clipos cut_attack_surface
CONFIG_ACPI_TABLE_UPGRADE kconfig is not set clipos cut_attack_surface
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS kconfig is not set clipos cut_attack_surface
CONFIG_AIO kconfig is not set clipos cut_attack_surface
CONFIG_EFI_TEST kconfig is not set lockdown cut_attack_surface
CONFIG_MMIOTRACE_TEST kconfig is not set lockdown cut_attack_surface
CONFIG_KPROBES kconfig is not set lockdown cut_attack_surface
CONFIG_MMIOTRACE kconfig is not set my cut_attack_surface
CONFIG_LIVEPATCH kconfig is not set my cut_attack_surface
CONFIG_IP_DCCP kconfig is not set my cut_attack_surface
CONFIG_IP_SCTP kconfig is not set my cut_attack_surface
CONFIG_FTRACE kconfig is not set my cut_attack_surface
CONFIG_VIDEO_VIVID kconfig is not set my cut_attack_surface
CONFIG_INPUT_EVBUG kconfig is not set my cut_attack_surface
CONFIG_KGDB kconfig is not set my cut_attack_surface
CONFIG_CORESIGHT kconfig is not set my cut_attack_surface
CONFIG_XFS_SUPPORT_V4 kconfig is not set my cut_attack_surface
CONFIG_TRIM_UNUSED_KSYMS kconfig y my cut_attack_surface
CONFIG_MODULE_FORCE_LOAD kconfig is not set my cut_attack_surface
CONFIG_COREDUMP kconfig is not set clipos harden_userspace
CONFIG_ARCH_MMAP_RND_BITS kconfig 32 my harden_userspace

Fails

CONFIG_SLUB_DEBUG |kconfig| y |defconfig | self_protection | FAIL: "is not set" CONFIG_GCC_PLUGINS |kconfig| y |defconfig | self_protection | FAIL: is not found 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 found CONFIG_STATIC_USERMODEHELPER |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_DEBUG_NOTIFIERS |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_RANDSTRUCT_FULL |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_RANDSTRUCT_PERFORMANCE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_RANDSTRUCT_FULL is not "y" CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y" CONFIG_UBSAN_BOUNDS |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_UBSAN_LOCAL_BOUNDS |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_UBSAN_TRAP |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS is not "y" CONFIG_UBSAN_SANITIZE_ALL |kconfig| y | kspp | self_protection | FAIL: CONFIG_UBSAN_BOUNDS is not "y" CONFIG_GCC_PLUGIN_STACKLEAK |kconfig| y | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y" CONFIG_STACKLEAK_METRICS |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y" CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGINS is not "y" CONFIG_CFI_CLANG |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_CFI_PERMISSIVE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_CFI_CLANG is not "y" 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_BINFMT_MISC |kconfig| is not set | kspp |cut_attack_surface| FAIL: "m" CONFIG_MODULES |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y" CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: is not found CONFIG_KCMP |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" 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_USER_NS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" CONFIG_BPF_SYSCALL |kconfig| is not set | lockdown |cut_attack_surface| FAIL: "y"


Totals: 'OK' - 148 / 'FAIL' - 16