On Tue, Dec 10, 2019 at 10:54:54AM -0600, Bin Liu wrote: > From: Jia-Ju Bai <baijiaju1990@xxxxxxxxx> > > In musb_handle_intr_connect(), there is an if statement on line 783 to > check whether musb->hcd is NULL: > if (musb->hcd) > > When musb->hcd is NULL, it is used on line 797: > musb_host_poke_root_hub(musb); > if (musb->hcd->status_urb) > > Thus, a possible null-pointer dereference may occur. Maybe, if musb->hcd really ever could be NULL. In looking at the code, I don't see where that could happen, do you? Why is that check there in the first place? What sets musb->hcd to NULL in the first place? thanks, greg k-h
