Updated: 2026-02-27 00:23:18.235964
Description:
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 past commit 2e7eab81425a
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 8.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 8.8 | HIGH | Already Fixed | 2024-01-18 13:09:49 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 8.8 | HIGH | Not Vulnerable | 2024-02-16 08:36:38 | Not affected: in this environment, guests do not have direct access to MSR_IA32_SPEC_CTRL (KVM inter... | |
| CentOS 7 ELS | kernel | 3.10.0 | 8.8 | HIGH | Released | CLSA-2024:1730801690 | 2024-11-22 12:19:41 | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 8.8 | HIGH | Released | CLSA-2023:1686585068 | 2023-06-13 09:08:07 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 8.8 | HIGH | Released | CLSA-2023:1686651204 | 2023-06-13 09:08:08 | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 8.8 | HIGH | Already Fixed | 2024-10-12 05:24:20 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 8.8 | HIGH | Not Vulnerable | 2023-09-21 14:13:37 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 8.8 | HIGH | Not Vulnerable | 2024-10-23 01:29:49 | Not affected: CVE-2022-2196 stems from upstream commit 5c911beff20a (“KVM: nVMX: Skip IBPB when sw... | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 8.8 | HIGH | Not Vulnerable | 2024-02-16 08:36:38 | Not affected: in this environment, guests do not have direct access to MSR_IA32_SPEC_CTRL (KVM inter... | |
| RHEL 7 ELS | kernel | 3.10.0 | 8.8 | HIGH | Released | CLSA-2025:1750353839 | 2025-06-20 04:45:02 |