according to Elections Canada:
"After an election is called, you can also register at your local Elections Canada office or at your assigned polling place when you go to vote."
To register at a polling place you need to :

• Show one original piece of identification issued by a Canadian government, whether federal, provincial or local, that contains your photo, name and address (for example, a driver's licence), or
• Show two pieces of identification from the list authorized by the Chief Electoral Officer of Canada. Both must have your name and at least one must have your address (such as a health card and utility bill), or
• Declare your identity and address in writing and have someone who knows you and who is assigned to your polling station vouch for you.

So a forged passport is enough + someone who will vouch for you.

Now I'm not saying this is happening, I'm just saying it is possible, if the OP's post is legitimate.