diff options
Diffstat (limited to 'zebra/rt_netlink.c')
| -rw-r--r-- | zebra/rt_netlink.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index a5f288f541..9033491549 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -295,8 +295,12 @@ static int netlink_route_change_read_unicast(struct nlmsghdr *h, ns_id_t ns_id, } len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct rtmsg)); - if (len < 0) + if (len < 0) { + zlog_err("%s: Message received from netlink is of a broken size %d %zu", + __PRETTY_FUNCTION__, h->nlmsg_len, + (size_t)NLMSG_LENGTH(sizeof(struct rtmsg))); return -1; + } memset(tb, 0, sizeof tb); netlink_parse_rtattr(tb, RTA_MAX, RTM_RTA(rtm), len); @@ -747,8 +751,13 @@ int netlink_route_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) return 0; len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct rtmsg)); - if (len < 0) + if (len < 0) { + zlog_err("%s: Message received from netlink is of a broken size: %d %zu", + __PRETTY_FUNCTION__, + h->nlmsg_len, + (size_t)NLMSG_LENGTH(sizeof(struct rtmsg))); return -1; + } if (rtm->rtm_type == RTN_MULTICAST) netlink_route_change_read_multicast(h, ns_id, startup); @@ -2356,8 +2365,12 @@ int netlink_neigh_change(struct nlmsghdr *h, ns_id_t ns_id) /* Length validity. */ len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ndmsg)); - if (len < 0) + if (len < 0) { + zlog_err("%s: Message received from netlink is of a broken size %d %zu", + __PRETTY_FUNCTION__, h->nlmsg_len, + (size_t)NLMSG_LENGTH(sizeof(struct ndmsg))); return -1; + } /* Is this a notification for the MAC FDB or IP neighbor table? */ ndm = NLMSG_DATA(h); |