1 files changed, 2 insertions, 0 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index f533d336e569..d96b8bfa748f 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3679,6 +3679,8 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address,
 {
         struct page *page;
 
+        if (!pmd_present(*pmd))
+                return NULL;
         page = pte_page(*(pte_t *)pmd);
         if (page)
                 page += ((address & ~PMD_MASK) >> PAGE_SHIFT);