kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...

Kernel: kvm: nVMX: uncaught software exceptions in L1 guest leads to DoS

Linux kernel built with the KVM visualization support CONFIGKVM, with nested visualizationnVMX feature enablednested=1, is vulnerable to an uncaught exception issue. It could occur if an L2 guest was to throw an exception which is not handled by an L1 guest...