KVM: VMX: avoid guest hang on invalid invvpid instruction · f6870ee9e5 - Gogs: Go Git Service GfA electronic

KVM: VMX: avoid guest hang on invalid invvpid instruction

A guest executing an invalid invvpid instruction would hang
because the instruction pointer was not updated.

Reported-by: jmontleo@redhat.com
Tested-by: jmontleo@redhat.com
Cc: stable@vger.kernel.org
Fixes: 99b83ac893b84ed1a62ad6d1f2b6cc32026b9e85
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Paolo Bonzini 9 years ago

parent

2849eb4f99

commit

f6870ee9e5

1 changed files with 1 additions and 0 deletions

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arch/x86/kvm/vmx.c
							 
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				@@ -7458,6 +7458,7 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
			
				 	if (!(types & (1UL << type))) {
			
				 		nested_vmx_failValid(vcpu,
			
				 			VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
			
				+		skip_emulated_instruction(vcpu);
			
				 		return 1;
			
				 	}