netlink: check new interface name is valid or not before sending request

2019-03-04 11:24:33 +09:00 · 2019-03-04 11:24:33 +09:00 · 4d64309955
parent bb5e88a226
commit 4d64309955
1 changed files with 3 additions and 0 deletions
--- a/src/libsystemd/sd-netlink/netlink-util.c
+++ b/src/libsystemd/sd-netlink/netlink-util.c
@ -13,6 +13,9 @@ int rtnl_set_link_name(sd_netlink **rtnl, int ifindex, const char *name) {
        assert(ifindex > 0);
        assert(name);

+        if (!ifname_valid(name))
+                return -EINVAL;
+
        if (!*rtnl) {
                r = sd_netlink_open(rtnl);
                if (r < 0)