Index: uspace/srv/loader/main.c
===================================================================
--- uspace/srv/loader/main.c	(revision beb83c14fc69926ddb40d44bb96dc734b5d21545)
+++ uspace/srv/loader/main.c	(revision 790f3a3a7e4d0de0dc62be56505cd98a8966eaef)
@@ -308,4 +308,10 @@
 #endif
 
+	if (!pcb.tcb) {
+		DPRINTF("Failed to make TLS for '%s'.\n", progname);
+		async_answer_0(req, ENOMEM);
+		return 1;
+	}
+
 	elf_set_pcb(&prog_info, &pcb);