diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c
index 4a3c0f3aab1490feef3111c667d21dcfee4e5e62..a9db79f80951c4b45e2456cb4e911ef95aebd86e 100644
--- a/drivers/rtc/rtc-lib.c
+++ b/drivers/rtc/rtc-lib.c
@@ -100,6 +100,7 @@ int rtc_valid_tm(struct rtc_time *tm)
 	if (tm->tm_year < 70
 		|| ((unsigned)tm->tm_mon) >= 12
 		|| tm->tm_mday < 1
+		|| tm->tm_year > (INT_MAX - 1900)
 		|| tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900)
 		|| ((unsigned)tm->tm_hour) >= 24
 		|| ((unsigned)tm->tm_min) >= 60