diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c
index ab0b0da270ca..4235bf8e455e 100644
--- a/arch/loongarch/kvm/vcpu.c
+++ b/arch/loongarch/kvm/vcpu.c
@@ -1452,6 +1452,10 @@ void kvm_lose_fpu(struct kvm_vcpu *vcpu)
 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
 {
 	int intr = (int)irq->irq;
+	unsigned int vector = abs(intr);
+
+	if (vector >= EXCCODE_INT_NUM)
+		return -EINVAL;
 
 	if (intr > 0)
 		kvm_queue_irq(vcpu, intr);