diff --git a/repos/base/src/base/thread/thread_start.cc b/repos/base/src/base/thread/thread_start.cc
index d1ea02d3f..debe74574 100644
--- a/repos/base/src/base/thread/thread_start.cc
+++ b/repos/base/src/base/thread/thread_start.cc
@@ -55,12 +55,18 @@ void Thread_base::start()
 	char buf[48];
 	name(buf, sizeof(buf));
 	_thread_cap = _cpu_session->create_thread(0, buf, (addr_t)&_context->utcb);
+	if (!_thread_cap.valid())
+		throw Cpu_session::Thread_creation_failed();
 
 	/* assign thread to protection domain */
-	env()->pd_session()->bind_thread(_thread_cap);
+	if (env()->pd_session()->bind_thread(_thread_cap))
+		throw Cpu_session::Thread_creation_failed();
 
 	/* create new pager object and assign it to the new thread */
 	Pager_capability pager_cap = env()->rm_session()->add_client(_thread_cap);
+	if (!pager_cap.valid())
+		throw Cpu_session::Thread_creation_failed();
+
 	_cpu_session->set_pager(_thread_cap, pager_cap);
 
 	/* register initial IP and SP at core */