CVE-2022-2196Medium· 5.8▾ SunlitA regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) adv…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 31.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).
linux_kernel >= 5.4.47, < 5.4.233linux_kernel >= 5.6.19, < 5.7linux_kernel >= 5.7.3, < 5.10.170linux_kernel >= 5.11, < 5.15.96linux_kernel >= 5.16, < 6.1.14debian_linux = 10.0Upgrade past the affected range:
linux_kernel 6.1.14Connected by shared product, vendor, weakness, or advisory.
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