1 files changed, 3 insertions, 0 deletions

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 796c9320c709..5d8324cd866b 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -505,6 +505,9 @@ static int gmap_connect_pgtable(unsigned long address, unsigned long segment,
         if (!pmd_present(*pmd) &&
             __pte_alloc(mm, vma, pmd, vmaddr))
                 return -ENOMEM;
+        /* large pmds cannot yet be handled */
+        if (pmd_large(*pmd))
+                return -EFAULT;
         /* pmd now points to a valid segment table entry. */
         rmap = kmalloc(sizeof(*rmap), GFP_KERNEL|__GFP_REPEAT);
         if (!rmap)