Lt. Gen. Ion Mihai Pacepa, who defected in 1978 from Romania has written several books on Soviet involvement with Oswald in general and the KGB in particular.
Also the retired KGB officer Vasily Mitrokhin, helped by the British MI6, smuggled documents into the west. They show how the Soviet KGB, along with the block countries intelligence organizations supported disinformation efforts to shift the blame from Russia to US government agencies.
And, the CIA would not ever be involved in deflecting any guilt concerning their direct involvement in the murder of the President who interferes with the Bay of Pigs Operation & signed an E. O. pulling the US Special Forces advisers out of Vietnam during the war build up phase.....?
No, no disinformation involved.....never happens!