Re: [PATCH v1 1/4] mm: Fix uprobe pte be overwritten when expanding vma

if (vp->remove) { @@ -1823,6 +1829,14 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, faulted_in_anon_vma = false; }

• /*

• * If the VMA we are copying might contain a uprobe PTE, ensure
  

• * that we do not establish one upon merge. Otherwise, when mremap()
  

• * moves page tables, it will orphan the newly created PTE.
  

• */
  

• if (vma->vm_file)

• vmg.skip_vma_uprobe = true;
  

Assuming we extend the VMA on the way (not merge), would we handle that properly?

Or is that not possible on this code path or already broken either way?