Hi,
the spectre-meltdown-checker is up to date for the x86, avalaible for arm but not installed by default.
I think is it necessary for arm, right ?
x86 : community repo
[nls@lap ~]$ spectre-meltdown-checker
Spectre and Meltdown mitigation detection tool v0.45
Note that you should launch this script with root privileges to get accurate information.
We'll proceed but you might see permission denied errors.
To run it as root, you can try the following command: sudo /usr/bin/spectre-meltdown-checker
Checking for vulnerabilities on current system
Kernel is Linux 6.1.26-1-MANJARO #1 SMP PREEMPT_DYNAMIC Wed Apr 26 22:07:35 UTC 2023 x86_64
CPU is Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
Hardware check
* Hardware support (CPU microcode) for mitigation techniques
* Indirect Branch Restricted Speculation (IBRS)
* SPEC_CTRL MSR is available: UNKNOWN (No read permission for /dev/cpu/0/msr)
* CPU indicates IBRS capability: UNKNOWN (Couldn't load cpuid module)
* Indirect Branch Prediction Barrier (IBPB)
* CPU indicates IBPB capability: UNKNOWN (is cpuid kernel module available?)
* Single Thread Indirect Branch Predictors (STIBP)
* SPEC_CTRL MSR is available: UNKNOWN (is msr kernel module available?)
* CPU indicates STIBP capability: UNKNOWN (Couldn't load cpuid module)
* Speculative Store Bypass Disable (SSBD)
* CPU indicates SSBD capability: UNKNOWN (Couldn't load cpuid module)
* L1 data cache invalidation
* CPU indicates L1D flush capability: UNKNOWN (Couldn't load cpuid module)
* Microarchitectural Data Sampling
* VERW instruction is available: UNKNOWN (Couldn't load cpuid module)
* Indirect Branch Predictor Controls
* Indirect Predictor Disable feature is available: UNKNOWN (Couldn't load cpuid module)
* Bottomless RSB Disable feature is available: UNKNOWN (Couldn't load cpuid module)
* BHB-Focused Indirect Predictor Disable feature is available: UNKNOWN (Couldn't load cpuid module)
* Enhanced IBRS (IBRS_ALL)
* CPU indicates ARCH_CAPABILITIES MSR availability: UNKNOWN (Couldn't load cpuid module)
* ARCH_CAPABILITIES MSR advertises IBRS_ALL capability: UNKNOWN
* CPU explicitly indicates not being affected by Meltdown/L1TF (RDCL_NO): UNKNOWN
* CPU explicitly indicates not being affected by Variant 4 (SSB_NO): UNKNOWN
* CPU/Hypervisor indicates L1D flushing is not necessary on this system: UNKNOWN
* Hypervisor indicates host CPU might be affected by RSB underflow (RSBA): UNKNOWN
* CPU explicitly indicates not being affected by Microarchitectural Data Sampling (MDS_NO): UNKNOWN
* CPU explicitly indicates not being affected by TSX Asynchronous Abort (TAA_NO): UNKNOWN
* CPU explicitly indicates not being affected by iTLB Multihit (PSCHANGE_MSC_NO): UNKNOWN
* CPU explicitly indicates having MSR for TSX control (TSX_CTRL_MSR): UNKNOWN
* CPU supports Transactional Synchronization Extensions (TSX): UNKNOWN (Couldn't load cpuid module)
* CPU supports Software Guard Extensions (SGX): UNKNOWN (Couldn't load cpuid module)
* CPU supports Special Register Buffer Data Sampling (SRBDS): UNKNOWN (Couldn't load cpuid module)
* CPU microcode is known to cause stability problems: NO (family 0x6 model 0x8e stepping 0xc ucode 0xf4 cpuid 0x0)
* CPU microcode is the latest known available version: UNKNOWN (couldn't get your cpuid)
* CPU vulnerability to the speculative execution attack variants
* Affected by CVE-2017-5753 (Spectre Variant 1, bounds check bypass): YES
* Affected by CVE-2017-5715 (Spectre Variant 2, branch target injection): YES
* Affected by CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): YES
* Affected by CVE-2018-3640 (Variant 3a, rogue system register read): YES
* Affected by CVE-2018-3639 (Variant 4, speculative store bypass): YES
* Affected by CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): YES
* Affected by CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): YES
* Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): YES
* Affected by CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): YES
* Affected by CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): YES
* Affected by CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): YES
* Affected by CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): YES
* Affected by CVE-2019-11135 (ZombieLoad V2, TSX Asynchronous Abort (TAA)): YES
* Affected by CVE-2018-12207 (No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)): YES
* Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): YES
CVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass'
* Mitigated according to the /sys interface: YES (Mitigation: usercopy/swapgs barriers and __user pointer sanitization)
* Kernel has array_index_mask_nospec: YES (1 occurrence(s) found of x86 64 bits array_index_mask_nospec())
* Kernel has the Red Hat/Ubuntu patch: NO
* Kernel has mask_nospec64 (arm64): NO
* Kernel has array_index_nospec (arm64): NO
> STATUS: NOT VULNERABLE (Mitigation: usercopy/swapgs barriers and __user pointer sanitization)
CVE-2017-5715 aka 'Spectre Variant 2, branch target injection'
* Mitigated according to the /sys interface: YES (Mitigation: Enhanced IBRS, IBPB: conditional, RSB filling, PBRSB-eIBRS: SW sequence)
* Mitigation 1
* Kernel is compiled with IBRS support: YES
* IBRS enabled and active: YES (Enhanced flavor, performance impact will be greatly reduced)
* Kernel is compiled with IBPB support: YES
* IBPB enabled and active: YES
* Mitigation 2
* Kernel has branch predictor hardening (arm): NO
* Kernel compiled with retpoline option: YES
* Kernel supports RSB filling: YES
> STATUS: NOT VULNERABLE (Enhanced IBRS + IBPB are mitigating the vulnerability)
CVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports Page Table Isolation (PTI): YES
* PTI enabled and active: dmesg: read kernel buffer failed: Operation not permitted
UNKNOWN (dmesg truncated, please reboot and relaunch this script)
* Reduced performance impact of PTI: YES (CPU supports INVPCID, performance impact of PTI will be greatly reduced)
* Running as a Xen PV DomU: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2018-3640 aka 'Variant 3a, rogue system register read'
* CPU microcode mitigates the vulnerability: NO
> STATUS: VULNERABLE (an up-to-date CPU microcode is needed to mitigate this vulnerability)
CVE-2018-3639 aka 'Variant 4, speculative store bypass'
* Mitigated according to the /sys interface: YES (Mitigation: Speculative Store Bypass disabled via prctl)
* Kernel supports disabling speculative store bypass (SSB): YES (found in /proc/self/status)
* SSB mitigation is enabled and active: YES (per-thread through prctl)
* SSB mitigation currently active for selected processes: NO (no process found using SSB mitigation through prctl)
> STATUS: NOT VULNERABLE (Mitigation: Speculative Store Bypass disabled via prctl)
CVE-2018-3615 aka 'Foreshadow (SGX), L1 terminal fault'
* CPU microcode mitigates the vulnerability: N/A
> STATUS: VULNERABLE (your CPU supports SGX and the microcode is not up to date)
CVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports PTE inversion: YES (found in kernel image)
* PTE inversion enabled and active: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault'
* Information from the /sys interface: Not affected
* This system is a host running a hypervisor: NO
* Mitigation 1 (KVM)
* EPT is disabled: NO
* Mitigation 2
* L1D flush is supported by kernel: YES (found flush_l1d in /proc/cpuinfo)
* L1D flush enabled: NO
* Hardware-backed L1D flush supported: YES (performance impact of the mitigation will be greatly reduced)
* Hyper-Threading (SMT) is enabled: YES
> STATUS: NOT VULNERABLE (your kernel reported your CPU model as not affected)
CVE-2018-12126 aka 'Fallout, microarchitectural store buffer data sampling (MSBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo)
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2018-12130 aka 'ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo)
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2018-12127 aka 'RIDL, microarchitectural load port data sampling (MLPDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo)
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2019-11091 aka 'RIDL, microarchitectural data sampling uncacheable memory (MDSUM)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo)
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2019-11135 aka 'ZombieLoad V2, TSX Asynchronous Abort (TAA)'
* Mitigated according to the /sys interface: YES (Not affected)
* TAA mitigation is supported by kernel: YES (found tsx_async_abort in kernel image)
* TAA mitigation enabled and active: NO
> STATUS: NOT VULNERABLE (Not affected)
CVE-2018-12207 aka 'No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)'
* Mitigated according to the /sys interface: YES (KVM: Mitigation: VMX disabled)
* This system is a host running a hypervisor: NO
* iTLB Multihit mitigation is supported by kernel: YES (found itlb_multihit in kernel image)
* iTLB Multihit mitigation enabled and active: YES (KVM: Mitigation: VMX disabled)
> STATUS: NOT VULNERABLE (this system is not running a hypervisor)
CVE-2020-0543 aka 'Special Register Buffer Data Sampling (SRBDS)'
* Mitigated according to the /sys interface: YES (Mitigation: Microcode)
* SRBDS mitigation control is supported by the kernel: YES (found SRBDS implementation evidence in kernel image. Your kernel is up to date for SRBDS mitigation)
* SRBDS mitigation control is enabled and active: YES (Mitigation: Microcode)
> STATUS: VULNERABLE (Your CPU microcode may need to be updated to mitigate the vulnerability)
> SUMMARY: CVE-2017-5753:OK CVE-2017-5715:OK CVE-2017-5754:OK CVE-2018-3640:KO CVE-2018-3639:OK CVE-2018-3615:KO CVE-2018-3620:OK CVE-2018-3646:OK CVE-2018-12126:OK CVE-2018-12130:OK CVE-2018-12127:OK CVE-2019-11091:OK CVE-2019-11135:OK CVE-2018-12207:OK CVE-2020-0543:KO
Need more detailed information about mitigation options? Use --explain
A false sense of security is worse than no security at all, see --disclaimer
arm : aur repo
[nls@m1 ~]$ spectre-meltdown-checker
Spectre and Meltdown mitigation detection tool v0.45
Note that you should launch this script with root privileges to get accurate information.
We'll proceed but you might see permission denied errors.
To run it as root, you can try the following command: sudo /bin/spectre-meltdown-checker
Checking for vulnerabilities on current system
Kernel is Linux 6.2.10-1-MANJARO-ARM #1 SMP PREEMPT Sat Apr 8 14:02:33 UTC 2023 aarch64
CPU is ARM v8 model 0xd05
Hardware check
* CPU vulnerability to the speculative execution attack variants
* Affected by CVE-2017-5753 (Spectre Variant 1, bounds check bypass): NO
* Affected by CVE-2017-5715 (Spectre Variant 2, branch target injection): NO
* Affected by CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): NO
* Affected by CVE-2018-3640 (Variant 3a, rogue system register read): NO
* Affected by CVE-2018-3639 (Variant 4, speculative store bypass): NO
* Affected by CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): NO
* Affected by CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): NO
* Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): NO
* Affected by CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): NO
* Affected by CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): NO
* Affected by CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): NO
* Affected by CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): NO
* Affected by CVE-2019-11135 (ZombieLoad V2, TSX Asynchronous Abort (TAA)): NO
* Affected by CVE-2018-12207 (No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)): NO
* Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO
CVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass'
* Mitigated according to the /sys interface: YES (Mitigation: __user pointer sanitization)
* Kernel has array_index_mask_nospec: NO
* Kernel has the Red Hat/Ubuntu patch: NO
* Kernel has mask_nospec64 (arm64): NO
* Kernel has array_index_nospec (arm64): NO
* Checking count of LFENCE instructions following a jump in kernel... NO (only 0 jump-then-lfence instructions found, should be >= 30 (heuristic))
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2017-5715 aka 'Spectre Variant 2, branch target injection'
* Mitigated according to the /sys interface: YES (Not affected)
* Mitigation 1
* Kernel is compiled with IBRS support: YES
* IBRS enabled and active: NO
* Kernel is compiled with IBPB support: NO
* IBPB enabled and active: NO
* Mitigation 2
* Kernel has branch predictor hardening (arm): YES
* Kernel compiled with retpoline option: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports Page Table Isolation (PTI): YES
* PTI enabled and active: NO
* Reduced performance impact of PTI: NO (PCID/INVPCID not supported, performance impact of PTI will be significant)
* Running as a Xen PV DomU: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3640 aka 'Variant 3a, rogue system register read'
* CPU microcode mitigates the vulnerability: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3639 aka 'Variant 4, speculative store bypass'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports disabling speculative store bypass (SSB): YES (found in /proc/self/status)
* SSB mitigation is enabled and active: NO (not vulnerable)
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3615 aka 'Foreshadow (SGX), L1 terminal fault'
* CPU microcode mitigates the vulnerability: N/A
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports PTE inversion: NO
* PTE inversion enabled and active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault'
* Information from the /sys interface: Not affected
* This system is a host running a hypervisor: NO
* Mitigation 1 (KVM)
* EPT is disabled: N/A (the kvm_intel module is not loaded)
* Mitigation 2
* L1D flush is supported by kernel: NO
* L1D flush enabled: NO
* Hardware-backed L1D flush supported: NO (flush will be done in software, this is slower)
* Hyper-Threading (SMT) is enabled: UNKNOWN
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12126 aka 'Fallout, microarchitectural store buffer data sampling (MSBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: NO
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12130 aka 'ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: NO
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12127 aka 'RIDL, microarchitectural load port data sampling (MLPDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: NO
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2019-11091 aka 'RIDL, microarchitectural data sampling uncacheable memory (MDSUM)'
* Mitigated according to the /sys interface: YES (Not affected)
* Kernel supports using MD_CLEAR mitigation: NO
* Kernel mitigation is enabled and active: NO
* SMT is either mitigated or disabled: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2019-11135 aka 'ZombieLoad V2, TSX Asynchronous Abort (TAA)'
* Mitigated according to the /sys interface: YES (Not affected)
* TAA mitigation is supported by kernel: YES (found tsx_async_abort in kernel image)
* TAA mitigation enabled and active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12207 aka 'No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)'
* Mitigated according to the /sys interface: YES (Not affected)
* This system is a host running a hypervisor: NO
* iTLB Multihit mitigation is supported by kernel: YES (found itlb_multihit in kernel image)
* iTLB Multihit mitigation enabled and active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2020-0543 aka 'Special Register Buffer Data Sampling (SRBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* SRBDS mitigation control is supported by the kernel: NO
* SRBDS mitigation control is enabled and active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
> SUMMARY: CVE-2017-5753:OK CVE-2017-5715:OK CVE-2017-5754:OK CVE-2018-3640:OK CVE-2018-3639:OK CVE-2018-3615:OK CVE-2018-3620:OK CVE-2018-3646:OK CVE-2018-12126:OK CVE-2018-12130:OK CVE-2018-12127:OK CVE-2019-11091:OK CVE-2019-11135:OK CVE-2018-12207:OK CVE-2020-0543:OK
Need more detailed information about mitigation options? Use --explain
A false sense of security is worse than no security at all, see --disclaimer
Moderator edit: Fixed formatting
