Index: sys/kern/sys_process.c
===================================================================
--- sys/kern/sys_process.c
+++ sys/kern/sys_process.c
@@ -510,7 +510,7 @@
 	pl32->pl_sigmask = pl->pl_sigmask;
 	pl32->pl_siglist = pl->pl_siglist;
 	siginfo_to_siginfo32(&pl->pl_siginfo, &pl32->pl_siginfo);
-	strcpy(pl32->pl_tdname, pl->pl_tdname);
+	bcopy(pl->pl_tdname, pl32->pl_tdname, sizeof(pl->pl_tdname));
 	pl32->pl_child_pid = pl->pl_child_pid;
 	pl32->pl_syscall_code = pl->pl_syscall_code;
 	pl32->pl_syscall_narg = pl->pl_syscall_narg;
@@ -1360,6 +1360,7 @@
 			pl->pl_flags |= PL_FLAG_EXITED;
 		pl->pl_sigmask = td2->td_sigmask;
 		pl->pl_siglist = td2->td_siglist;
+		bzero(pl->pl_tdname, sizeof(pl->pl_tdname));
 		strcpy(pl->pl_tdname, td2->td_name);
 		if ((td2->td_dbgflags & (TDB_SCE | TDB_SCX)) != 0) {
 			pl->pl_syscall_code = td2->td_sa.code;