[Lguest] [PATCH 04/16] per-cpu run guest
Rusty Russell
rusty at rustcorp.com.au
Wed Dec 26 10:38:45 EST 2007
On Friday 21 December 2007 00:33:44 Glauber de Oliveira Costa wrote:
> @@ -55,11 +55,15 @@ static int user_send_irq(struct lguest *lg, const
> unsigned long __user *input) static ssize_t read(struct file *file, char
> __user *user, size_t size,loff_t*o) {
> struct lguest *lg = file->private_data;
> + struct lguest_vcpu *vcpu = NULL;
> + unsigned int vcpu_id = *o;
>
> /* You must write LHREQ_INITIALIZE first! */
> if (!lg)
> return -EINVAL;
>
> + vcpu = &lg->vcpus[vcpu_id];
> +
Better do a bounds check here!
Cheers,
Rusty.
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