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amd nested virtualization

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    CVE-2026-45987: KVM AMD Nested Virtualization Interrupt-Shadow Hang After Restore

    CVE-2026-45987 is a newly published Linux kernel KVM vulnerability, disclosed by kernel.org and listed by NVD on May 27, 2026, involving AMD nested virtualization state handling that can cause an L2 virtual machine to hang after restore or migration. The bug is not a flashy remote-code-execution...
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    • amd nested virtualization kvm security linux kernel vulnerability vm migration
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    • Forum: Security Alerts
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    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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    • amd nested virtualization kvm security linux kernel cve vmcb lbr
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    • Forum: Security Alerts
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