Seeing as i sold you that fork I know exactly how long that steerer is. It is fine for bikes with up to ~120mm headtubes (depending on the stack height of the headset and stem you are using) any bigger than that and you will **need** a longer steerer.
Also… seeing as you have that little steerer showing you must have moved the bottom crown down the leg a bit, which means depending on the tyre you are using you may not have the full 140mm clearance between the tyre and crown so they could contact on full compression.
Please do not ride it like that.
(for ref it was previously fitted to a an Intense Tracer with a 117mm headtube and a 1st gen hope headset and a straightline XC stem, and that was about the limit of its adjustment.)