no problem, for any permit, except visitor, anyone can entry to Canada with just one day valid passport
You must have a valid passport to come to Canada. If your passport expires within 6 months from the day you apply, you should renew it. Then, when you get your new passport, update your passport information in your application. This will ensure it's valid when we process your application, and avoid additional delays.Feb 24, 2022
The Canadian government requires that most visitors have a valid passport that is at least six months old at the time of entry. This means that if your passport expires in three months, you will not be allowed to enter Canada. Jun 20, 2023
six month validity is just for visitos. other permits have no restriction, just valid to fligh and enter to Canada
6 months validity for IRCC is juts to be sure to issue any permit visa (PR, Work, Student), once, people enter to Canada, can renew theirs passports in the respectivs consulates or embasied.
Canada will let them in. However, what the airline believes is the rule may be different. In theory the airline can look it up or inquire through their immigration channels - but not all airlines are equally assiduous about this or competent.
