From ff43dddab7260c9220eaea2a545514772c0e581f Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Fri, 15 Oct 2021 10:06:25 +0900 Subject: [PATCH] network: route: fix possible overflow in conversion usec_t -> uint32_t --- src/network/networkd-route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c index f7ef657bca..767f47a8b4 100644 --- a/src/network/networkd-route.c +++ b/src/network/networkd-route.c @@ -1391,7 +1391,7 @@ static int route_configure( if (route->lifetime != USEC_INFINITY && kernel_route_expiration_supported()) { r = sd_netlink_message_append_u32(req, RTA_EXPIRES, - DIV_ROUND_UP(usec_sub_unsigned(route->lifetime, now(clock_boottime_or_monotonic())), USEC_PER_SEC)); + MIN(DIV_ROUND_UP(usec_sub_unsigned(route->lifetime, now(clock_boottime_or_monotonic())), USEC_PER_SEC), UINT32_MAX)); if (r < 0) return log_link_error_errno(link, r, "Could not append RTA_EXPIRES attribute: %m"); }