netlink: check input name is valid before calling netlink method

2021-06-12 03:19:08 +09:00
parent f6e491547d
commit 57bd6aa701
1 changed files with 3 additions and 0 deletions
@@ -274,6 +274,9 @@ int rtnl_resolve_link_alternative_name(sd_netlink **rtnl, const char *name) {

        assert(name);

+        if (!ifname_valid_full(name, IFNAME_VALID_ALTERNATIVE))
+                return -EINVAL;
+
        if (!rtnl)
                rtnl = &our_rtnl;
        if (!*rtnl) {