vmcb lbr

  1. CVE-2026-46071 KVM Nested Virtualization Fix: LBR Clean Bit in AMD nSVM

    CVE-2026-46071 is a Linux kernel KVM vulnerability published by NVD on May 27, 2026, affecting AMD nested virtualization code where KVM’s nSVM path incorrectly dirtied the LBR clean bit in a guest-owned VMCB during nested VM exit handling. The fix is small, but the signal is not: modern...
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    • Forum: Security Alerts