Is there a chapter where Konohamaru told Naruto about Kashin Koji used Rasengan against him, and if that's possible, then is Naruto aware of it might be Jiraiya?
As the others have stated, as of now he didn’t. But in the future, if there is no mention of Konahamaru or Boruto having informed him then we can chalk up that idiotic literary folly to Kodachi. Yet again.