diff --git a/backport-network-add-missing-link-network-checks.patch b/backport-network-add-missing-link-network-checks.patch
new file mode 100644
index 0000000..186596b
--- /dev/null
+++ b/backport-network-add-missing-link-network-checks.patch
@@ -0,0 +1,41 @@
+From b1b0b42e48303134731e017a108c6c334ef5f4c8 Mon Sep 17 00:00:00 2001
+From: Yu Watanabe <watanabe.yu+github@gmail.com>
+Date: Tue, 17 Sep 2019 21:29:23 +0900
+Subject: [PATCH] network: add missing link->network checks
+
+When the function is called, no network file may be assigned to the
+link.
+---
+ src/network/networkd-link.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
+index f1aeb7287e34..46d55f64dc5b 100644
+--- a/src/network/networkd-link.c
++++ b/src/network/networkd-link.c
+@@ -2393,9 +2393,9 @@ static int link_drop_foreign_config(Link *link) {
+                         continue;
+ 
+                 if (link_address_is_dynamic(link, address)) {
+-                        if (FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP))
++                        if (link->network && FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP))
+                                 continue;
+-                } else if (FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_STATIC))
++                } else if (link->network && FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_STATIC))
+                         continue;
+ 
+                 if (link_is_static_address_configured(link, address)) {
+@@ -2435,11 +2435,11 @@ static int link_drop_foreign_config(Link *link) {
+                     in_addr_equal(AF_INET6, &route->dst, &(union in_addr_union) { .in6 = {{{ 0xff,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 }}} }))
+                         continue;
+ 
+-                if (route->protocol == RTPROT_STATIC &&
++                if (route->protocol == RTPROT_STATIC && link->network &&
+                     FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_STATIC))
+                         continue;
+ 
+-                if (route->protocol == RTPROT_DHCP &&
++                if (route->protocol == RTPROT_DHCP && link->network &&
+                     FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP))
+                         continue;
+ 
diff --git a/systemd.spec b/systemd.spec
index 6b26e74..6422f3b 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -16,7 +16,7 @@
 Name:           systemd
 Url:            https://www.freedesktop.org/wiki/Software/systemd
 Version:        243
-Release:        45
+Release:        46
 License:        MIT and LGPLv2+ and GPLv2+
 Summary:        System and Service Manager
 
@@ -137,6 +137,7 @@ Patch0089:      backport-stat-util-add-stat_inode_unmodified-helper-that-chec.pa
 Patch0090:      backport-basic-stat-util-make-mtime-check-stricter-and-use-en.patch
 Patch0091:      backport-udev-make-algorithm-that-selects-highest-priority-de.patch
 Patch0092:      backport-tentatively-ignore-FORCERENEW-command.patch
+Patch0093:      backport-network-add-missing-link-network-checks.patch
 
 #openEuler
 Patch9002:      1509-fix-journal-file-descriptors-leak-problems.patch
@@ -1524,6 +1525,9 @@ fi
 %exclude /usr/share/man/man3/*
 
 %changelog
+* Thu Sep 9 2021 yangmingtai <yangmingtai@huawei.com> - 243-46
+- fix network coredump after install cloud-init
+
 * Mon Aug 16 2021 yangmingtai <yangmingtai@huawei.com> - 243-45
 - Type:CVE
 - ID:CVE-2020-13529