diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index 33f83fee9faec6be78206ebbc4aeee5ba1702fc8..a57bb5ab761cec2619c8ae065fce210d9b0451d0 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -2709,6 +2709,8 @@ cy_ioctl(struct tty_struct *tty,
 		break;
 #ifndef CONFIG_CYZ_INTR
 	case CYZSETPOLLCYCLE:
+		if (arg > LONG_MAX / HZ)
+			return -ENODEV;
 		cyz_polling_cycle = (arg * HZ) / 1000;
 		break;
 	case CYZGETPOLLCYCLE: