diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 08ea7b4139..c4923980e3 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -785,7 +785,7 @@ static int link_set_routing_policy_rule(Link *link) {
         LIST_FOREACH(rules, rule, link->network->rules) {
                 r = routing_policy_rule_get(link->manager, rule->family, &rule->from, rule->from_prefixlen, &rule->to,
                                             rule->to_prefixlen, rule->tos, rule->fwmark, rule->table, rule->iif, rule->oif, &rrule);
-                if (r == 1) {
+                if (r == 0) {
                         (void) routing_policy_rule_make_local(link->manager, rrule);
                         continue;
                 }
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 7433be96ff..9dcd911535 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -1451,8 +1451,10 @@ void manager_free(Manager *m) {
         while ((pool = m->address_pools))
                 address_pool_free(pool);
 
-        set_free_with_destructor(m->rules, routing_policy_rule_free);
-        set_free_with_destructor(m->rules_foreign, routing_policy_rule_free);
+        /* routing_policy_rule_free() access m->rules and m->rules_foreign.
+         * So, it is necessary to set NULL after the sets are freed. */
+        m->rules = set_free_with_destructor(m->rules, routing_policy_rule_free);
+        m->rules_foreign = set_free_with_destructor(m->rules_foreign, routing_policy_rule_free);
         set_free_with_destructor(m->rules_saved, routing_policy_rule_free);
 
         sd_event_unref(m->event);
diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c
index c7d6ac2558..9b393d82a0 100644
--- a/src/network/networkd-radv.c
+++ b/src/network/networkd-radv.c
@@ -92,9 +92,11 @@ void prefix_free(Prefix *prefix) {
                 assert(prefix->network->n_static_prefixes > 0);
                 prefix->network->n_static_prefixes--;
 
-                if (prefix->section)
+                if (prefix->section) {
                         hashmap_remove(prefix->network->prefixes_by_section,
                                        prefix->section);
+                        network_config_section_free(prefix->section);
+                }
         }
 
         prefix->radv_prefix = sd_radv_prefix_unref(prefix->radv_prefix);
diff --git a/src/network/networkd-routing-policy-rule.c b/src/network/networkd-routing-policy-rule.c
index 28a2a0fcbf..739f9e6a5a 100644
--- a/src/network/networkd-routing-policy-rule.c
+++ b/src/network/networkd-routing-policy-rule.c
@@ -79,10 +79,10 @@ static void routing_policy_rule_hash_func(const void *b, struct siphash *state)
                 siphash24_compress(&rule->table, sizeof(rule->table), state);
 
                 if (rule->iif)
-                        siphash24_compress(&rule->iif, strlen(rule->iif), state);
+                        siphash24_compress(rule->iif, strlen(rule->iif), state);
 
                 if (rule->oif)
-                        siphash24_compress(&rule->oif, strlen(rule->oif), state);
+                        siphash24_compress(rule->oif, strlen(rule->oif), state);
 
                 break;
         default:
@@ -188,7 +188,7 @@ int routing_policy_rule_get(Manager *m,
         if (existing) {
                 if (ret)
                         *ret = existing;
-                return 1;
+                return 0;
         }
 
         return -ENOENT;
@@ -257,8 +257,8 @@ static int routing_policy_rule_add_internal(Manager *m,
         rule->tos = tos;
         rule->fwmark = fwmark;
         rule->table = table;
-        rule->iif = TAKE_PTR(iif);
-        rule->oif = TAKE_PTR(oif);
+        rule->iif = iif;
+        rule->oif = oif;
 
         r = set_ensure_allocated(rules, &routing_policy_rule_hash_ops);
         if (r < 0)
@@ -272,6 +272,7 @@ static int routing_policy_rule_add_internal(Manager *m,
                 *ret = rule;
 
         rule = NULL;
+        iif = oif = NULL;
 
         return 0;
 }
@@ -549,7 +550,7 @@ int routing_policy_rule_configure(RoutingPolicyRule *rule, Link *link, sd_netlin
         r = routing_policy_rule_add(link->manager, rule->family, &rule->from, rule->from_prefixlen, &rule->to,
                                     rule->to_prefixlen, rule->tos, rule->fwmark, rule->table, rule->iif, rule->oif, NULL);
         if (r < 0)
-                return log_error_errno(r, "Could not add rule : %m");
+                return log_error_errno(r, "Could not add rule: %m");
 
         return 0;
 }