diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-05-07 18:06:26 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-06-18 11:47:21 +0200 |
| commit | 73cb85568433feadb79e963bf2efba9b3e9ae3df (patch) | |
| tree | 183b4dc9aca07b0b477bc1a8aed3bc55504fa0a0 /arch/x86 | |
| parent | KVM: nVMX: Don't reread VMCS-agnostic state when switching VMCS (diff) | |
| download | linux-73cb85568433feadb79e963bf2efba9b3e9ae3df.tar.xz linux-73cb85568433feadb79e963bf2efba9b3e9ae3df.zip | |
KVM: nVMX: Don't dump VMCS if virtual APIC page can't be mapped
... as a malicious userspace can run a toy guest to generate invalid
virtual-APIC page addresses in L1, i.e. flood the kernel log with error
messages.
Fixes: 690908104e39d ("KVM: nVMX: allow tests to use bad virtual-APIC page address")
Cc: stable@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 691f84bff051..4ba0e7b60253 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -2880,9 +2880,6 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu) */ vmcs_clear_bits(CPU_BASED_VM_EXEC_CONTROL, CPU_BASED_TPR_SHADOW); - } else { - printk("bad virtual-APIC page address\n"); - dump_vmcs(); } } |