From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 4 Mar 2019 02:24:33 +0000 (+0900)
Subject: netlink: check new interface name is valid or not before sending request
X-Git-Tag: v242-rc1~198^2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4d64309955fe6543b5bbf9c2c7da81a7ea8da9d3;p=thirdparty%2Fsystemd.git

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

diff --git a/src/libsystemd/sd-netlink/netlink-util.c b/src/libsystemd/sd-netlink/netlink-util.c
index 3928dfbabf3..628ce507a05 100644
--- 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)