Iloka (knee) was placed on injured reserve by the Vikings on Thursday.
Iloka signed with the Vikings' 53-man roster Saturday, Chris Tomasson of the St. Paul Pioneer Press reports.
The Vikings promoted Iloka from the 53-man roster via the practice squad Sunday.
Iloka (shoulder) was released by the Cowboys on Friday, Jon Machota of The Athletic reports.
Iloka signed a one-year deal with the Cowboys on Saturday, Todd Archer of ESPN.com reports.
Iloka moved to a reserve role and just one tackle in Sunday's win over Detroit. He played just one snap on defense.
Iloka started at strong safety and had eight total tackles in Sunday's win over Arizona.
Iloka is expected to start at safety Sunday against the Cardinals with Andrew Sendejo (groin) already ruled out, Andrew Kammer of the Minneapolis Star Tribune reports.
Iloka signed with the Vikings on Wednesday, Tom Pelissero of NFL.com reports.
The Bengals are slated to release Iloka, Ian Rapoport of NFL Network reports.