Not likely an issue in a tent which is drafty, bit white gas is pretty bad for CO production though, unlike kerosene or propane. I wouldn't use white gas unless you are very very well ventilated, kerosene and propane you have much more leeway. like mentioned above, propane is like natural gas and you see both types of those stoves in houses without any extra venting although if you are burning a lot of it, venting will be required (eg, hot water tank or furnace).I had a catalytic heater sold for camping, ie. for keeping your tent warm. I was super reluctant to use it for fear of CO. Until one very cold night. I decided to try it while I stayed awake until it got warm.
Yeah that didn’t happen. I was out like a light. Both of us survived, so either the tent was very leaky or these things don’t make much CO.