Index: uspace/srv/loader/main.c
===================================================================
--- uspace/srv/loader/main.c	(revision e131bd05cd3ced3b445c51035c8943d3ead77524)
+++ uspace/srv/loader/main.c	(revision c74b9de1187f3b60a7db1aad1e1fcd51ae134f24)
@@ -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);