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-rw-r--r--mm/madvise.c8
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: