## Usage
```
+./bin/kernel-hardening-checker -h
usage: kernel-hardening-checker [-h] [--version] [-m {verbose,json,show_ok,show_fail}]
- [-c CONFIG] [-l CMDLINE] [-s SYSCTL] [-v KERNEL_VERSION]
+ [-a] [-c CONFIG] [-v KERNEL_VERSION] [-l CMDLINE] [-s SYSCTL]
[-p {X86_64,X86_32,ARM64,ARM}]
[-g {X86_64,X86_32,ARM64,ARM}]
--version show program's version number and exit
-m {verbose,json,show_ok,show_fail}, --mode {verbose,json,show_ok,show_fail}
choose the report mode
+ -a, --autodetect autodetect and check the security hardening options
+ of the running kernel
-c CONFIG, --config CONFIG
- check the security hardening options in the kernel Kconfig file
+ check the security hardening options in the Kconfig file
(also supports *.gz files)
+ -v KERNEL_VERSION, --kernel-version KERNEL_VERSION
+ extract version from the kernel version file (contents of
+ /proc/version) instead of Kconfig file
-l CMDLINE, --cmdline CMDLINE
check the security hardening options in the kernel cmdline file
(contents of /proc/cmdline)
-s SYSCTL, --sysctl SYSCTL
check the security hardening options in the sysctl output file
(`sudo sysctl -a > file`)
- -v KERNEL_VERSION, --kernel-version KERNEL_VERSION
- extract the version from the kernel version file (contents of
- /proc/version)
-p {X86_64,X86_32,ARM64,ARM}, --print {X86_64,X86_32,ARM64,ARM}
print the security hardening recommendations for the selected
microarchitecture
- `-m show_ok` for showing only the successful checks
- `-m json` for printing the results in JSON format (for combining `kernel-hardening-checker` with other tools)
-## Example output for `Ubuntu 22.04` kernel configuration
+## Example output
```
-$ ./bin/kernel-hardening-checker -c kernel_hardening_checker/config_files/distros/ubuntu-22.04.config -l /proc/cmdline -s kernel_hardening_checker/config_files/distros/example_sysctls.txt
-[+] Kconfig file to check: kernel_hardening_checker/config_files/distros/ubuntu-22.04.config
-[+] Kernel cmdline file to check: /proc/cmdline
-[+] Sysctl output file to check: kernel_hardening_checker/config_files/distros/example_sysctls.txt
+$ ./bin/kernel-hardening-checker -a
+[+] Going to autodetect and check the security hardening options of the running kernel
+[+] Detected version of the running kernel: (6, 5, 0)
+[+] Detected kconfig file of the running kernel: /boot/config-6.5.0-1025-azure
+[+] Detected cmdline parameters of the running kernel: /proc/cmdline
+[+] Saved sysctl output to /tmp/sysctl-n7hd4ab2
[+] Detected microarchitecture: X86_64
-[+] Detected kernel version: (5, 15, 0)
-[+] Detected compiler: GCC 110200
+[+] Detected compiler: GCC 110400
+[!] WARNING: cmdline option "console" is found multiple times
+[!] WARNING: sysctl options available for root are not found in /tmp/sysctl-n7hd4ab2, try checking the output of `sudo sysctl -a`
=========================================================================================================================
option_name | type |desired_val | decision | reason | check_result
=========================================================================================================================
CONFIG_STRICT_MODULE_RWX |kconfig| y |defconfig | self_protection | OK
CONFIG_REFCOUNT_FULL |kconfig| y |defconfig | self_protection | OK: version >= (5, 4, 208)
CONFIG_INIT_STACK_ALL_ZERO |kconfig| y |defconfig | self_protection | FAIL: is not found
-CONFIG_CPU_MITIGATIONS |kconfig| y |defconfig | self_protection | FAIL: is not found
+CONFIG_CPU_MITIGATIONS |kconfig| y |defconfig | self_protection | OK: CONFIG_SPECULATION_MITIGATIONS is "y"
CONFIG_RANDOMIZE_BASE |kconfig| y |defconfig | self_protection | OK
CONFIG_VMAP_STACK |kconfig| y |defconfig | self_protection | OK
CONFIG_DEBUG_WX |kconfig| y |defconfig | self_protection | OK
CONFIG_MICROCODE |kconfig| y |defconfig | self_protection | OK
CONFIG_MICROCODE_INTEL |kconfig| y |defconfig | self_protection | OK
CONFIG_MICROCODE_AMD |kconfig| y |defconfig | self_protection | OK
-CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK
+CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK: version >= (5, 19, 0)
CONFIG_X86_UMIP |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_MITIGATION_RFDS |kconfig| y |defconfig | self_protection | FAIL: is not found
CONFIG_MITIGATION_SPECTRE_BHI |kconfig| y |defconfig | self_protection | FAIL: is not found
CONFIG_RANDOMIZE_MEMORY |kconfig| y |defconfig | self_protection | OK
-CONFIG_X86_KERNEL_IBT |kconfig| y |defconfig | self_protection | FAIL: is not found
+CONFIG_X86_KERNEL_IBT |kconfig| y |defconfig | self_protection | FAIL: "is not set"
CONFIG_MITIGATION_PAGE_TABLE_ISOLATION |kconfig| y |defconfig | self_protection | OK: CONFIG_PAGE_TABLE_ISOLATION is "y"
-CONFIG_MITIGATION_SRSO |kconfig| y |defconfig | self_protection | FAIL: is not found
+CONFIG_MITIGATION_SRSO |kconfig| y |defconfig | self_protection | OK: CONFIG_CPU_SRSO is "y"
CONFIG_INTEL_IOMMU |kconfig| y |defconfig | self_protection | OK
CONFIG_AMD_IOMMU |kconfig| y |defconfig | self_protection | OK
-CONFIG_LIST_HARDENED |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_RANDOM_KMALLOC_CACHES |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_SLAB_MERGE_DEFAULT |kconfig| is not set | kspp | self_protection | FAIL: "y"
CONFIG_BUG_ON_DATA_CORRUPTION |kconfig| y | kspp | self_protection | FAIL: "is not set"
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 | FAIL: "is not set"
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_INIT_ON_ALLOC_DEFAULT_ON |kconfig| y | kspp | self_protection | OK
CONFIG_SECURITY_LOCKDOWN_LSM |kconfig| y | kspp | self_protection | OK
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY |kconfig| y | kspp | self_protection | OK
CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY|kconfig| y | kspp | self_protection | FAIL: "is not set"
-CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: "is not set"
+CONFIG_LIST_HARDENED |kconfig| y | kspp | self_protection | FAIL: is not found
+CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_DEBUG_NOTIFIERS |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_SCHED_STACK_END_CHECK |kconfig| y | kspp | self_protection | OK
CONFIG_KFENCE |kconfig| y | kspp | self_protection | OK
CONFIG_KFENCE_SAMPLE_INTERVAL |kconfig| 100 | kspp | self_protection | FAIL: "0"
CONFIG_RANDSTRUCT_FULL |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_HARDENED_USERCOPY |kconfig| y | kspp | self_protection | OK
-CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK
-CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK
+CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK: is not found
+CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK: is not found
CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_MODULE_SIG |kconfig| y | kspp | self_protection | OK
CONFIG_MODULE_SIG_ALL |kconfig| y | kspp | self_protection | OK
CONFIG_STACKLEAK_METRICS |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is not "y"
CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is not "y"
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection | OK
-CONFIG_PAGE_TABLE_CHECK |kconfig| y | kspp | self_protection | FAIL: is not found
+CONFIG_PAGE_TABLE_CHECK |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_PAGE_TABLE_CHECK_ENFORCED |kconfig| y | kspp | self_protection | FAIL: is not found
CONFIG_CFI_CLANG |kconfig| y | kspp | self_protection | FAIL: CONFIG_CC_IS_CLANG is not "y"
CONFIG_CFI_PERMISSIVE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_CC_IS_CLANG is not "y"
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_INTEL_IOMMU_DEFAULT_ON |kconfig| y | kspp | self_protection | OK
-CONFIG_MITIGATION_SLS |kconfig| y | kspp | self_protection | FAIL: is not found
+CONFIG_MITIGATION_SLS |kconfig| y | kspp | self_protection | OK: CONFIG_SLS is "y"
CONFIG_INTEL_IOMMU_SVM |kconfig| y | kspp | self_protection | OK
CONFIG_AMD_IOMMU_V2 |kconfig| y | kspp | self_protection | FAIL: "m"
+CONFIG_CFI_AUTO_DEFAULT |kconfig| is not set |a13xp0p0v | self_protection | FAIL: CONFIG_CFI_AUTO_DEFAULT is not present
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_DISABLE |kconfig| is not set | kspp | security_policy | OK: is not found
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_WRITABLE_HOOKS |kconfig| is not set | kspp | security_policy | OK: is not found
CONFIG_HIBERNATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
CONFIG_COMPAT |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| FAIL: "y"
-CONFIG_X86_X32_ABI |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
+CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
+CONFIG_X86_X32_ABI |kconfig| is not set | kspp |cut_attack_surface| OK
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: is not found
CONFIG_X86_MSR |kconfig| is not set | kspp |cut_attack_surface| FAIL: "m"
-CONFIG_LEGACY_TIOCSTI |kconfig| is not set | kspp |cut_attack_surface| OK: is not found
+CONFIG_LEGACY_TIOCSTI |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
CONFIG_MODULE_FORCE_LOAD |kconfig| is not set | kspp |cut_attack_surface| OK
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_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 |kconfig| is not set |maintainer|cut_attack_surface| OK
CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found
-CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT |kconfig| is not set |maintainer|cut_attack_surface| OK
+CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found
CONFIG_N_GSM |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "m"
CONFIG_ZSMALLOC_STAT |kconfig| is not set | grsec |cut_attack_surface| OK
CONFIG_DEBUG_KMEMLEAK |kconfig| is not set | grsec |cut_attack_surface| OK
CONFIG_NOTIFIER_ERROR_INJECTION |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
CONFIG_PUNIT_ATOM_DEBUG |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
-CONFIG_ACPI_CONFIGFS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
+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
CONFIG_DVB_C8SECTPFE |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
-CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
-CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
+CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
+CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
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_PROVIDE_OHCI1394_DMA_INIT |kconfig| is not set | grsec |cut_attack_surface| OK
CONFIG_SUNRPC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
CONFIG_X86_16BIT |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
-CONFIG_BLK_DEV_UBLK |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
+CONFIG_BLK_DEV_UBLK |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
CONFIG_SMB_SERVER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m"
CONFIG_XFS_ONLINE_SCRUB_STATS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
-CONFIG_CACHESTAT_SYSCALL |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
+CONFIG_CACHESTAT_SYSCALL |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y"
CONFIG_PREEMPTIRQ_TRACEPOINTS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
CONFIG_ENABLE_DEFAULT_TRACERS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found
CONFIG_PROVE_LOCKING |kconfig| is not set | grsec |cut_attack_surface| OK
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: "m"
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_ACPI_TABLE_UPGRADE |kconfig| is not set | clipos |cut_attack_surface| OK
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
CONFIG_AIO |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
CONFIG_MAGIC_SYSRQ |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
CONFIG_FAULT_INJECTION |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK
CONFIG_ARM_PTDUMP_DEBUGFS |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found
CONFIG_ARM_PTDUMP |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found
-CONFIG_LKDTM |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK
+CONFIG_SECCOMP_CACHE_DEBUG |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK
+CONFIG_LKDTM |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found
CONFIG_TRIM_UNUSED_KSYMS |kconfig| y |a13xp0p0v |cut_attack_surface| FAIL: "is not set"
CONFIG_COREDUMP |kconfig| is not set | clipos | harden_userspace | FAIL: "y"
-CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 |a13xp0p0v | harden_userspace | FAIL: "28"
+CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 |a13xp0p0v | harden_userspace | OK
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS |kconfig| 16 |a13xp0p0v | harden_userspace | OK
CONFIG_X86_USER_SHADOW_STACK |kconfig| y | kspp | harden_userspace | FAIL: is not found
nosmep |cmdline| is not set |defconfig | self_protection | OK: is not found
nosmap |cmdline| is not set |defconfig | self_protection | OK: is not found
slab_merge |cmdline| is not set | kspp | self_protection | OK: is not found
slub_merge |cmdline| is not set | kspp | self_protection | OK: is not found
page_alloc.shuffle |cmdline| 1 | kspp | self_protection | FAIL: is not found
-cfi |cmdline| kcfi | kspp | self_protection | FAIL: is not found
slab_nomerge |cmdline| is present | kspp | self_protection | FAIL: is not present
init_on_alloc |cmdline| 1 | kspp | self_protection | OK: CONFIG_INIT_ON_ALLOC_DEFAULT_ON is "y"
init_on_free |cmdline| 1 | kspp | self_protection | FAIL: is not found
randomize_kstack_offset |cmdline| 1 | kspp | self_protection | OK: CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is "y"
mitigations |cmdline| auto,nosmt | kspp | self_protection | FAIL: is not found
pti |cmdline| on | kspp | self_protection | FAIL: is not found
+cfi |cmdline| kcfi | kspp | self_protection | FAIL: is not found
iommu |cmdline| force | clipos | self_protection | FAIL: is not found
tsx |cmdline| off |defconfig |cut_attack_surface| OK: CONFIG_X86_INTEL_TSX_MODE_OFF is "y"
nosmt |cmdline| is present | kspp |cut_attack_surface| FAIL: is not present
bdev_allow_write_mounted |cmdline| 0 |a13xp0p0v |cut_attack_surface| OK: CONFIG_BLK_DEV_WRITE_MOUNTED is not found
ia32_emulation |cmdline| 0 |a13xp0p0v |cut_attack_surface| FAIL: is not found
norandmaps |cmdline| is not set |defconfig | harden_userspace | OK: is not found
-net.core.bpf_jit_harden |sysctl | 2 | kspp | self_protection | FAIL: "0"
-kernel.oops_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: is not found
-kernel.warn_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: is not found
+net.core.bpf_jit_harden |sysctl | 2 | kspp | self_protection | FAIL: is not found
+kernel.oops_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: "10000"
+kernel.warn_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: "0"
+vm.mmap_min_addr |sysctl | 65536 | kspp | self_protection | OK
kernel.dmesg_restrict |sysctl | 1 | kspp |cut_attack_surface| OK
kernel.perf_event_paranoid |sysctl | 3 | kspp |cut_attack_surface| FAIL: "4"
-user.max_user_namespaces |sysctl | 0 | kspp |cut_attack_surface| FAIL: "31231"
+user.max_user_namespaces |sysctl | 0 | kspp |cut_attack_surface| FAIL: "63899"
dev.tty.ldisc_autoload |sysctl | 0 | kspp |cut_attack_surface| FAIL: "1"
kernel.kptr_restrict |sysctl | 2 | kspp |cut_attack_surface| FAIL: "1"
-dev.tty.legacy_tiocsti |sysctl | 0 | kspp |cut_attack_surface| FAIL: is not found
+dev.tty.legacy_tiocsti |sysctl | 0 | kspp |cut_attack_surface| FAIL: "1"
kernel.kexec_load_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "0"
kernel.unprivileged_bpf_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "2"
vm.unprivileged_userfaultfd |sysctl | 0 | kspp |cut_attack_surface| OK
kernel.modules_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "0"
-kernel.io_uring_disabled |sysctl | 2 | grsec |cut_attack_surface| FAIL: is not found
+kernel.io_uring_disabled |sysctl | 2 | grsec |cut_attack_surface| FAIL: "0"
kernel.sysrq |sysctl | 0 |a13xp0p0v |cut_attack_surface| FAIL: "176"
fs.protected_symlinks |sysctl | 1 | kspp | harden_userspace | OK
fs.protected_hardlinks |sysctl | 1 | kspp | harden_userspace | OK
fs.suid_dumpable |sysctl | 0 | kspp | harden_userspace | FAIL: "2"
kernel.randomize_va_space |sysctl | 2 | kspp | harden_userspace | OK
kernel.yama.ptrace_scope |sysctl | 3 | kspp | harden_userspace | FAIL: "1"
+vm.mmap_rnd_bits |sysctl | 32 |a13xp0p0v | harden_userspace | FAIL: is not found
+vm.mmap_rnd_compat_bits |sysctl | 16 |a13xp0p0v | harden_userspace | FAIL: is not found
-[+] Config check is finished: 'OK' - 135 / 'FAIL' - 158
+[+] Config check is finished: 'OK' - 145 / 'FAIL' - 153
```
## Generating a Kconfig fragment with the security hardening options
projects / kconfig-hardened-check.git / commitdiff