Ryan O'Neal and son Redmond have been charged with felony drug possession and other counts, "Extra" has learned.

The L.A. District Attorney's Office announced today that both men face one felony count of possession of a controlled substance -- methamphetamine -- and Redmond has been charged with two misdemeanor counts of possession of drug paraphernalia, and one misdemeanor count of illegal possession of pepper spray.

Ryan and Redmond were busted Sept. 17 after police allegedly found drugs during a probation search in Malibu. "The drugs found were not his," attorney Mark Werksman has said of Ryan. "He would never use them."

They'll be arraigned Nov. 13 in Malibu.