1 files changed, 6 insertions, 2 deletions

diff --git a/mm/madvise.c b/mm/madvise.c
index 14d260fa0d17..03dfa5c7adb3 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -69,10 +69,14 @@ static long madvise_behavior(struct vm_area_struct * vma,
                 new_flags &= ~VM_DONTCOPY;
                 break;
         case MADV_DONTDUMP:
-                new_flags |= VM_NODUMP;
+                new_flags |= VM_DONTDUMP;
                 break;
         case MADV_DODUMP:
-                new_flags &= ~VM_NODUMP;
+                if (new_flags & VM_SPECIAL) {
+                        error = -EINVAL;
+                        goto out;
+                }
+                new_flags &= ~VM_DONTDUMP;
                 break;
         case MADV_MERGEABLE:
         case MADV_UNMERGEABLE: