system vulnerability : need guidelines about linux patch if possible

Asked by Musashi on 2020-10-26

I just ran lscpu on my system and I got this:

NUMA node0 CPU(s): 0-3
Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages
Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cach
                                 e flushes, SMT vulnerable
Vulnerability Mds: Mitigation; Clear CPU buffers; SMT vulnerable
Vulnerability Meltdown: Mitigation; PTI
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled v
                                 ia prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user
                                  pointer sanitization
Vulnerability Spectre v2: Mitigation; Full generic retpoline, IBPB condit
                                 ional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds: Mitigation; Microcode
Vulnerability Tsx async abort: Not affected
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtr
                                 r pge mca cmov pat pse36 clflush dts acpi mmx f
                                 xsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rd
                                 tscp lm constant_tsc art arch_perfmon pebs bts
                                 rep_good nopl xtopology nonstop_tsc cpuid aperf
                                 mperf pni pclmulqdq dtes64 monitor ds_cpl vmx e
                                 st tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_
                                 1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
                                  aes xsave avx f16c rdrand lahf_lm abm 3dnowpre
                                 fetch cpuid_fault epb invpcid_single pti ssbd i
                                 brs ibpb stibp tpr_shadow vnmi flexpriority ept
                                  vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep
                                  bmi2 erms invpcid mpx rdseed adx smap clflusho
                                 pt intel_pt xsaveopt xsavec xgetbv1 xsaves dthe
                                 rm arat pln pts hwp hwp_notify hwp_act_window h
                                 wp_epp md_clear flush_l1d

by any chance is there any linux patch for these vulnerabilities ? P.s your timely assistance will mean a lot, thank you!

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