1 files changed, 5 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 7616bcf107b9..bab7b254ad39 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -329,15 +329,17 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 if (!tmp)
                         goto fail_nomem;
                 *tmp = *mpnt;
+                INIT_LIST_HEAD(&tmp->anon_vma_chain);
                 pol = mpol_dup(vma_policy(mpnt));
                 retval = PTR_ERR(pol);
                 if (IS_ERR(pol))
                         goto fail_nomem_policy;
                 vma_set_policy(tmp, pol);
+                if (anon_vma_fork(tmp, mpnt))
+                        goto fail_nomem_anon_vma_fork;
                 tmp->vm_flags &= ~VM_LOCKED;
                 tmp->vm_mm = mm;
                 tmp->vm_next = NULL;
-                anon_vma_link(tmp);
                 file = tmp->vm_file;
                 if (file) {
                         struct inode *inode = file->f_path.dentry->d_inode;
@@ -392,6 +394,8 @@ out:
         flush_tlb_mm(oldmm);
         up_write(&oldmm->mmap_sem);
         return retval;
+fail_nomem_anon_vma_fork:
+        mpol_put(pol);
 fail_nomem_policy:
         kmem_cache_free(vm_area_cachep, tmp);
 fail_nomem: