Index: FreeBSD/cddl/contrib/opensolaris/common/ctf/ctf_create.c
===================================================================
--- FreeBSD/cddl/contrib/opensolaris/common/ctf/ctf_create.c
+++ FreeBSD/cddl/contrib/opensolaris/common/ctf/ctf_create.c
@@ -615,7 +615,7 @@
        if ((dtd = ctf_alloc(sizeof (ctf_dtdef_t))) == NULL)
                return (ctf_set_errno(fp, EAGAIN));
 
-       if (name != NULL && (s = ctf_strdup(name)) == NULL) {
+       if (name != NULL && *name != '\0' && (s = ctf_strdup(name)) == NULL) {
                ctf_free(dtd, sizeof (ctf_dtdef_t));
                return (ctf_set_errno(fp, EAGAIN));
        }
@@ -1217,7 +1217,7 @@
        if ((dmd = ctf_alloc(sizeof (ctf_dmdef_t))) == NULL)
                return (ctf_set_errno(ctb->ctb_file, EAGAIN));
 
-       if (name != NULL && (s = ctf_strdup(name)) == NULL) {
+       if (name != NULL && *name != '\0' && (s = ctf_strdup(name)) == NULL) {
                ctf_free(dmd, sizeof (ctf_dmdef_t));
                return (ctf_set_errno(ctb->ctb_file, EAGAIN));
        }