diff options
Diffstat (limited to 'zebra/if_netlink.c')
| -rw-r--r-- | zebra/if_netlink.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/zebra/if_netlink.c b/zebra/if_netlink.c index a51e0b82cb..2a9fff2666 100644 --- a/zebra/if_netlink.c +++ b/zebra/if_netlink.c @@ -1527,6 +1527,14 @@ int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) return -1; name = (char *)RTA_DATA(tb[IFLA_IFNAME]); + /* Must be valid string. */ + len = RTA_PAYLOAD(tb[IFLA_IFNAME]); + if (len < 2 || name[len - 1] != '\0') { + if (IS_ZEBRA_DEBUG_KERNEL) + zlog_debug("%s: invalid intf name", __func__); + return -1; + } + if (tb[IFLA_LINKINFO]) { netlink_parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); |