diff --git a/NetworkManager.spec b/NetworkManager.spec
index 6f33beccc24e136477d82099d5b73f5c332ea24b..6cfe4661e893a93fae24559c30dcc300b1890f8a 100644
--- a/NetworkManager.spec
+++ b/NetworkManager.spec
@@ -48,7 +48,7 @@
 Name:             NetworkManager
 Version:          1.26.2
 Epoch:            1
-Release:          6
+Release:          7
 Summary:          Network Link Manager and User Applications
 License:          GPLv2+
 URL:              https://www.gnome.org/projects/NetworkManager/
@@ -58,7 +58,8 @@ Source2:          00-server.conf
 # PATCH-FEATURE-FIX fix-wants-and-add-requires.patch --fix wants and add requires in the file of NetworkManager.service.in
 Patch1:           fix-wants-and-add-requires.patch
 Patch2:           bugfix-NetworkManager-restarting-service-on-dependency-failure.patch
-Patch3:		  bugfix-nmcli-field-active-show-error.patch
+Patch3:           bugfix-nmcli-field-active-show-error.patch
+Patch4:           bugfix-NM-ipv4-may-fail-error.patch
 
 BuildRequires:    gcc libtool pkgconfig automake autoconf intltool gettext-devel ppp-devel gnutls-devel
 BuildRequires:    dbus-devel dbus-glib-devel  glib2-devel gobject-introspection-devel jansson-devel
@@ -429,6 +430,12 @@ fi
 %{_datadir}/gtk-doc/html/NetworkManager/*
 
 %changelog
+* Mon Jul 12 2021 zhangqiang <zhangqiang@kylinos.cn> - 1.26.2-7
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix NM ipv4 may-fail property read ipv6 config
+
 * Wed Jul 07 2021 zhangqiang <zhangqiang@kylinos.cn> - 1.26.2-6
 - Type:bugfix
 - ID:NA
diff --git a/bugfix-NM-ipv4-may-fail-error.patch b/bugfix-NM-ipv4-may-fail-error.patch
new file mode 100644
index 0000000000000000000000000000000000000000..b4510dd7403862c4b813e093e302803a3c48e6d1
--- /dev/null
+++ b/bugfix-NM-ipv4-may-fail-error.patch
@@ -0,0 +1,12 @@
+diff -urN NetworkManager-1.26.2/src/devices/nm-device.c NetworkManager-1.26.2-bugfix/src/devices/nm-device.c
+--- NetworkManager-1.26.2/src/devices/nm-device.c	2020-08-19 15:39:11.000000000 +0800
++++ NetworkManager-1.26.2-bugfix/src/devices/nm-device.c	2021-07-12 16:35:40.582424033 +0800
+@@ -11302,7 +11302,7 @@
+ 	NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE;
+ 	NMDeviceStateReason failure_reason = NM_DEVICE_STATE_REASON_NONE;
+ 
+-	ret = NM_DEVICE_GET_CLASS (self)->act_stage4_ip_config_timeout (self, AF_INET6, &failure_reason);
++	ret = NM_DEVICE_GET_CLASS (self)->act_stage4_ip_config_timeout (self, AF_INET, &failure_reason);
+ 	if (ret == NM_ACT_STAGE_RETURN_POSTPONE)
+ 		return;
+ 	else if (ret == NM_ACT_STAGE_RETURN_FAILURE) {