1 files changed, 5 insertions, 0 deletions

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index fa517ae9207f..71067d1ac9d9 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1474,6 +1474,11 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
                 error = PTR_ERR(mntroot);
                 goto error_splat_super;
         }
+        if (mntroot->d_inode->i_op != &nfs_dir_inode_operations) {
+                dput(mntroot);
+                error = -ESTALE;
+                goto error_splat_super;
+        }
 
         s->s_flags |= MS_ACTIVE;
         mnt->mnt_sb = s;