Hypervisor-From-Scratch

Hypervisor From Scratch Un tutorial su come creare un hypervisor da zero Tutte le parti » Parte 1 · Parte 2 · Parte 3 · Parte 4 · Parte 5 · Parte 6 · Parte 7 · Parte 8 Se stai cercando di usare un hypervisor per attività di analisi e reverse engineering, dai un'occhiata aHyperDbg Debugger. È un...

CVE-2026-64562

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM nested virtualization nVMX feature. This vulnerability occurs because the shadow Virtual Machine Control Structure VMCS is freed prematurely while still being referenced. Due to asynchronous operations, a virtual CPU vCPU mig...

UBUNTU-CVE-2026-72287

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks Move the off-by-default consistency check for vmcs12.tprthreshold vs. the virtual APIC vTPR into the "normal" controls checks, as waiting until KVM has...

CVE-2026-72287

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks Move the off-by-default consistency check for vmcs12.tprthreshold vs. the virtual APIC vTPR into the "normal" controls checks, as waiting until KVM has...

CVE-2026-72287 KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks Move the off-by-default consistency check for vmcs12.tprthreshold vs. the virtual APIC vTPR into the "normal" controls checks, as waiting until KVM has...

CVE-2026-72287

The CVE-2026-72287 entry covers a Linux kernel KVM nVMX issue where the vTPR vs. TPR Threshold consistency check was moved into normal checks. Affected component: KVM’s nested VMX path in the Linux kernel (vmcs12.tpr_threshold vs vTPR) and the handling of GUEST_CR3 when EPT is disabled. Reported ...

EUVD-2026-59186

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks Move the off-by-default consistency check for vmcs12.tprthreshold vs. the virtual APIC vTPR into the "normal" controls checks, as waiting until KVM has...

SUSE CVE-2026-68081

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 pages if KVM synthesizes a nested VM-Exit due to invalid guest while emulating VMLAUNCH or VMRESUME. The invalid guest state path...

CVE-2026-68081

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 pages if KVM synthesizes a nested VM-Exit due to invalid guest while emulating VMLAUNCH or VMRESUME. The invalid guest state path...

KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode

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SUSE CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

UBUNTU-CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

EUVD-2026-53790

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604

CVE-2026-64604 concerns the Linux kernel KVM VMX path, where CR8 intercept updates are performed: the VMCS12 state is grabbed only when the vCPU is in guest mode to avoid a lockdep assertion in get_vmcs12(). The provided description and call trace show that the issue arises during vCPU creation a...

CVE-2026-64604 KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604 KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64562 KVM: nVMX: Hide shadow VMCS right after VMCLEAR

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR freenested frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loadedvmcsclear, the vCPU might migrate before the pointer is cleare...