Re: [PATCH] mm/hugetlbfs Fix bugs in hugetlb_vmtruncate_list

[Andrew Morton]

On Thu,  7 Jan 2016 14:35:37 -0800 Mike Kravetz <mike.kravetz@xxxxxxxxxx> wrote:

> Hillf Danton noticed bugs in the hugetlb_vmtruncate_list routine.
> The argument end is of type pgoff_t.  It was being converted to a
> vaddr offset and passed to unmap_hugepage_range.  However, end
> was also being used as an argument to the vma_interval_tree_foreach
> controlling loop.  In addition, the conversion of end to vaddr offset
> was incorrect.

Could we please have a description of the user-visible effects of the
bug?  It's always needed for -stable things.  And for all bugfixes, really.

(stable@xxxxxxxxxxxxxxx[4.3] isn't an email address btw - my client barfed)