diff --git a/backport-core-fix-free-undefined-pointer-when-strdup-failed-i.patch b/backport-core-fix-free-undefined-pointer-when-strdup-failed-i.patch
new file mode 100644
index 0000000000000000000000000000000000000000..17e0d0ba9d6c8b95b375e434a9121b6bd5699ff2
--- /dev/null
+++ b/backport-core-fix-free-undefined-pointer-when-strdup-failed-i.patch
@@ -0,0 +1,33 @@
+From 1509274359979079e3e61899ce12fc8b0f0958d9 Mon Sep 17 00:00:00 2001
+From: xujing <17826839720@163.com>
+Date: Wed, 8 Sep 2021 14:26:20 +0800
+Subject: [PATCH] core: fix free undefined pointer when strdup failed in the
+ first loop
+
+---
+ src/core/load-fragment.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
+index 92815b1dbaea..1c8159a23550 100644
+--- a/src/core/load-fragment.c
++++ b/src/core/load-fragment.c
+@@ -800,7 +800,7 @@ int config_parse_exec(
+                 if (!separate_argv0) {
+                         char *w = NULL;
+ 
+-                        if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
++                        if (!GREEDY_REALLOC0(n, nbufsize, nlen + 2))
+                                 return log_oom();
+ 
+                         w = strdup(path);
+@@ -832,7 +832,7 @@ int config_parse_exec(
+                                 p += 2;
+                                 p += strspn(p, WHITESPACE);
+ 
+-                                if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
++                                if (!GREEDY_REALLOC0(n, nbufsize, nlen + 2))
+                                         return log_oom();
+ 
+                                 w = strdup(";");
+
diff --git a/systemd.spec b/systemd.spec
index 5beb518edbf415565d6c60277ee33886c7898615..416fd336e8257ea50a6b5260da4503f77e94c50b 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -16,7 +16,7 @@
 Name:           systemd
 Url:            https://www.freedesktop.org/wiki/Software/systemd
 Version:        243
-Release:        46
+Release:        47
 License:        MIT and LGPLv2+ and GPLv2+
 Summary:        System and Service Manager
 
@@ -137,6 +137,7 @@ Patch0090:      backport-basic-stat-util-make-mtime-check-stricter-and-use-en.pa
 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
+Patch0094:      backport-core-fix-free-undefined-pointer-when-strdup-failed-i.patch
 
 #openEuler
 Patch9002:      1509-fix-journal-file-descriptors-leak-problems.patch
@@ -1524,6 +1525,9 @@ fi
 %exclude /usr/share/man/man3/*
 
 %changelog
+* Thu Sep 16 2021 ExtinctFire <shenyining_00@126.com> - 243-47
+- core: fix free undefined pointer when strdup failed in the first loop
+
 * Thu Sep 9 2021 yangmingtai <yangmingtai@huawei.com> - 243-46
 - fix network coredump after install cloud-init