diff options
Diffstat (limited to 'zebra/if_netlink.c')
| -rw-r--r-- | zebra/if_netlink.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/zebra/if_netlink.c b/zebra/if_netlink.c index e6d324ab6a..5c84219418 100644 --- a/zebra/if_netlink.c +++ b/zebra/if_netlink.c @@ -586,8 +586,13 @@ static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) return 0; len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); - 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 ifinfomsg))); return -1; + } /* We are interested in some AF_BRIDGE notifications. */ if (ifi->ifi_family == AF_BRIDGE) @@ -893,8 +898,13 @@ int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) return 0; len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); - 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 ifaddrmsg))); return -1; + } memset(tb, 0, sizeof tb); netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); @@ -1105,8 +1115,12 @@ int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) } len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); - 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 ifinfomsg))); return -1; + } /* We are interested in some AF_BRIDGE notifications. */ if (ifi->ifi_family == AF_BRIDGE) |