From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 17 Jul 2019 01:21:07 +0000 (+0900)
Subject: network: fix use after free()
X-Git-Tag: v243-rc1~94^2~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=26a65470bafddce12103b4702623a74829501777;p=thirdparty%2Fsystemd.git

network: fix use after free()

The hashmap will be accessed by client_stop().
---

diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 51cc8f654bb..6037e8564fd 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -1395,7 +1395,7 @@ void manager_free(Manager *m) {
 
         while ((a = hashmap_first_key(m->dhcp6_prefixes)))
                 (void) dhcp6_prefix_remove(m, a);
-        hashmap_free(m->dhcp6_prefixes);
+        m->dhcp6_prefixes = hashmap_free(m->dhcp6_prefixes);
 
         while ((link = hashmap_steal_first(m->links))) {
                 if (link->dhcp6_client)