Никаких коридоров и оговорок.
Visa free transit
As from the 1st of September 2006, foreigners in possession of a valid visa or residence permit issued by one of the Schengen States as well as Slovakia, Czech Republic, Slovenia, Estonia, Latvia, Lithuania, Malta, Cyprus or Poland, may transit through Hungary without having a Hungarian transit visa or airport transit visa. Same rules applies for holders of residence permits issued by Switzerland or Liechtenstein.
Holders of a visa or residence permit issued by the UK, Ireland, Romania and Bulgaria are not entitled for visa free transit.
The validity of the visa or residence permit substitutes the Hungarian transit visa shall cover the duration of the transit.
The duration of visa free transit cannot exceed 5 days.
Transit means entering from country X to Hungary and leaving Hungary to county Y (coming from Austria to Ukraine via Hungary).
http://www.mfa.gov.hu/kum/en/bal/consular_services/Entry_Foreiner ... g_hungary/