diff --git a/kernel/signal.c b/kernel/signal.c
index 9ca8e5278c8e..5424cb0006bc 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2393,6 +2393,11 @@ relock:
 		goto relock;
 	}
 
+	/* Has this task already been marked for death? */
+	ksig->info.si_signo = signr = SIGKILL;
+	if (signal_group_exit(signal))
+		goto fatal;
+
 	for (;;) {
 		struct k_sigaction *ka;
 
@@ -2488,6 +2493,7 @@ relock:
 			continue;
 		}
 
+	fatal:
 		spin_unlock_irq(&sighand->siglock);
 
 		/*