engine light on stalling white smoke from muff smelling gas

sounds like a blown head gasket

Usually white smoke is a sign of blown headgasket! U might get lucky & can go to autoparts store & buy this headgasket sealer, which is in a Blue bottle & is around $50 but the sales guy will know what ur talking about. but I've used it & lucky it worked & saved me around $4000 I'd probley be charged for a new motor.but until then I wouldn't drive it & check oil & see if it's milky & that's a sign of water in oil & check water to see if there's oil & if so clean all the oil out & where ever else it is not suppose to be.