Unfortunately,you can not renew and yes canada grants visas according to your passport duration.you might want to hold on applying but if not then of course you can apply

ccemordi:
Hi guys thanks for all you doing on this thread. God bless you all.. please I need clarification on this matter.. working to apply soon but I notice my wife’s passport will expire oct 2019 while mine and daughter expires next year may.. can we all renew before applying for summer vacation because I heard/read visa are sometime issue according to the validity of passport.. please I need urgent advise before I put in my application.. thanks all in advance