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LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()

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Function kvm_vcpu_ioctl_interrupt() can be called from userspace, here
add irq validility cheking in kvm_vcpu_ioctl_interrupt().

Cc: stable@vger.kernel.org
Fixes: f45ad5b8aa ("LoongArch: KVM: Implement vcpu interrupt operations")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2026-06-11 20:46:40 +08:00 committed by Huacai Chen
parent 1ef045effb
commit 09b318ab77
1 changed files with 4 additions and 0 deletions
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4
arch/loongarch/kvm/vcpu.c
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@ -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);