On Wed, Jul 15, 2020 at 4:04 PM Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > It *might* be as simple as this incremental thing on top No, it needs to be + if (*old_addr + *len < old->vm_end) + return; in try_to_align_end(), of course. Now I'm going for a lie-down, because this cross-eyed thing isn't working. Linus