diff --git a/usr.bin/netstat/route_netlink.c b/usr.bin/netstat/route_netlink.c index 3546603ca1cc..6e7e505c9619 100644 --- a/usr.bin/netstat/route_netlink.c +++ b/usr.bin/netstat/route_netlink.c @@ -91,10 +91,8 @@ prepare_ifmap_netlink(struct snl_state *ss, size_t *pifmap_size) }; msg.hdr.nlmsg_len = sizeof(msg); - if (!snl_send_message(ss, &msg.hdr)) { - snl_free(ss); + if (!snl_send_message(ss, &msg.hdr)) return (NULL); - } struct ifmap_entry *ifmap = NULL; uint32_t ifmap_size = 0; @@ -286,6 +284,10 @@ p_rtable_netlink(int fibnum, int af) return (false); ifmap = prepare_ifmap_netlink(&ss, &ifmap_size); + if (ifmap == NULL) { + snl_free(&ss); + return (false); + } struct { struct nlmsghdr hdr;