From 0008b5aee22e32c60f2df5ce925ddf7e25f83bd8 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 3 Feb 2021 16:58:29 +0900
Subject: [PATCH] network: nexthop: unset gateway when an empty string is
 assigned

---
 src/network/networkd-nexthop.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/network/networkd-nexthop.c b/src/network/networkd-nexthop.c
index 6143de11f3b..a05026db406 100644
--- a/src/network/networkd-nexthop.c
+++ b/src/network/networkd-nexthop.c
@@ -519,6 +519,14 @@ int config_parse_nexthop_gateway(
         if (r < 0)
                 return log_oom();
 
+        if (isempty(rvalue)) {
+                n->family = AF_UNSPEC;
+                n->gw = IN_ADDR_NULL;
+
+                TAKE_PTR(n);
+                return 0;
+        }
+
         r = in_addr_from_string_auto(rvalue, &n->family, &n->gw);
         if (r < 0) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
-- 
2.47.3