From: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
Date: Mon, 16 Dec 2019 22:01:16 -0300
> syzbot reported a memory leak when an allocation fails within
> genradix_prealloc() for output streams. That's because
> genradix_prealloc() leaves initialized members initialized when the
> issue happens and SCTP stack will abort the current initialization but
> without cleaning up such members.
>
> The fix here is to always call genradix_free() when genradix_prealloc()
> fails, for output and also input streams, as it suffers from the same
> issue.
>
> Reported-by: syzbot+772d9e36c490b18d51d1@xxxxxxxxxxxxxxxxxxxxxxxxx
> Fixes: 2075e50caf5e ("sctp: convert to genradix")
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
Applied and queued up for -stable.
