> @@ -152,6 +160,10 @@ int build_id_parse(struct vm_area_struct *vma, unsigned char *build_id,
> page = find_get_page(vma->vm_file->f_mapping, 0);
> if (!page)
> return -EFAULT; /* page not mapped */
> + if (!PageUptodate(page)) {
> + put_page(page);
> + return -EFAULT;
> + }
That change is not described. As I understand it might prevent reading
previous data in the page or maybe junk under an IO error? Anyways I guess it's a
good change.
Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
-Andi
