diff --git a/lib/libcuse/cuse_lib.c b/lib/libcuse/cuse_lib.c
--- a/lib/libcuse/cuse_lib.c
+++ b/lib/libcuse/cuse_lib.c
@@ -104,9 +104,14 @@
 		else
 			return (CUSE_ERR_INVALID);
 	}
-	pthread_mutexattr_init(&attr);
+	if (pthread_mutexattr_init(&attr) != 0) {
+		close(f_cuse);
+		f_cuse = -1;
+		return (CUSE_ERR_NO_MEMORY);
+	}
 	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
 	pthread_mutex_init(&m_cuse, &attr);
+	pthread_mutexattr_destroy(&attr);
 
 	TAILQ_INIT(&h_cuse);
 	TAILQ_INIT(&h_cuse_entered);