diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 0e971ea97580..d727e56ef4b1 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1381,7 +1381,8 @@ int ovl_fill_super(struct super_block *sb, struct fs_context *fc)
 	int err;
 
 	err = -EIO;
-	if (WARN_ON(fc->user_ns != current_user_ns()))
+	/* The fscontext fd may have been passed to another user namespace. */
+	if (fc->user_ns != current_user_ns())
 		goto out_err;
 
 	ovl_set_d_op(sb);