Question: Can an Eretz Yisroel resident receive an aliya when he is in chutz lo’oretz (because chutz lo’oretz currently are a sedrah behind Eretz Yisroel)?
Answer: Yes, a ben Eretz Yisroel can receive an aliya in chutz lo’oretz, despite the fact that a different sedra is being leined. This is because a ben Eretz Yisroel is also obligated in keriyas hatorah, and although Eretz Yisroel and chutz lo’oretz lein different sedras (when the last day of Pesach or Shavuos coincides with Shabbos) the intrinsic obligation of keriyas hatorah is incumbent on everyone (Yom Tov Sheni Kehilchoso Perek 12 Se’if 7).