Re: [PATCH v6 3/3] KVM: nVMX: Fix mmu context after VMLAUNCH/VMRESUME failure

2017-11-06 Thread Paolo Bonzini
On 06/11/2017 01:54, Wanpeng Li wrote: > From: Wanpeng Li > > Commit 4f350c6dbcb (kvm: nVMX: Handle deferred early VMLAUNCH/VMRESUME > failure > properly) can result in L1(run kvm-unit-tests/run_tests.sh vmx_controls in > L1) > null pointer deference and also L0 calltrace when EPT=0 on both L

[PATCH v6 3/3] KVM: nVMX: Fix mmu context after VMLAUNCH/VMRESUME failure

2017-11-05 Thread Wanpeng Li
From: Wanpeng Li Commit 4f350c6dbcb (kvm: nVMX: Handle deferred early VMLAUNCH/VMRESUME failure properly) can result in L1(run kvm-unit-tests/run_tests.sh vmx_controls in L1) null pointer deference and also L0 calltrace when EPT=0 on both L0 and L1. In L1: BUG: unable to handle kernel paging