diff --git a/6027-udev-allow-for-udev-attribute-reading-bug.patch b/6027-udev-allow-for-udev-attribute-reading-bug.patch
new file mode 100644
index 0000000000000000000000000000000000000000..bf521b62dece6e58c446e0c636882b5acfd87bd8
--- /dev/null
+++ b/6027-udev-allow-for-udev-attribute-reading-bug.patch
@@ -0,0 +1,47 @@
+From c25c96739c2498620adf761141b06d31b5434caf Mon Sep 17 00:00:00 2001
+From: NeilBrown <neilb@suse.de>
+Date: Wed, 18 Sep 2019 15:12:55 +1000
+Subject: [PATCH] udev: allow for udev attribute reading bug.
+
+There is a bug in udev (which will hopefully get fixed, but
+we should allow for it anways).
+When reading a sysfs attribute, it first reads the whole
+value of the attribute, then reads again expecting to get
+a read of 0 bytes, like you would with an ordinary file.
+If the sysfs attribute changed between these two reads, it can
+get a mixture of two values.
+
+In particular, if it reads when 'array_state' is changing from
+'clear' to 'inactive', it can find the value as "clear\nve".
+
+This causes the test for "|clear|active" to fail, so systemd is allowed
+to think that the array is ready - when it isn't.
+
+So change the pattern to allow for this but adding a wildcard at
+the end.
+Also don't allow for an empty string - reading array_state will
+never return an empty string - if it exists at all, it will be
+non-empty.
+
+Signed-off-by: NeilBrown <neilb@suse.de>
+Signed-off-by: Jes Sorensen <jsorensen@fb.com>
+---
+ udev-md-raid-arrays.rules | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/udev-md-raid-arrays.rules b/udev-md-raid-arrays.rules
+index c95ec7b..ae1b0b9 100644
+--- a/udev-md-raid-arrays.rules
++++ b/udev-md-raid-arrays.rules
+@@ -14,7 +14,7 @@ ENV{DEVTYPE}=="partition", GOTO="md_ignore_state"
+ # never leave state 'inactive'
+ ATTR{md/metadata_version}=="external:[A-Za-z]*", ATTR{md/array_state}=="inactive", GOTO="md_ignore_state"
+ TEST!="md/array_state", ENV{SYSTEMD_READY}="0", GOTO="md_end"
+-ATTR{md/array_state}=="|clear|inactive", ENV{SYSTEMD_READY}="0", GOTO="md_end"
++ATTR{md/array_state}=="clear*|inactive", ENV{SYSTEMD_READY}="0", GOTO="md_end"
+ LABEL="md_ignore_state"
+ 
+ IMPORT{program}="BINDIR/mdadm --detail --export $devnode"
+-- 
+2.43.0
+
diff --git a/mdadm.spec b/mdadm.spec
index a6b6df20e29f0d990756e9b86e1f3f3768e14ee7..657f1c299bb2ee9010ca76e94c9981b22e3d988e 100644
--- a/mdadm.spec
+++ b/mdadm.spec
@@ -1,6 +1,6 @@
 Name:     mdadm
 Version:  4.1
-Release:  rc2.0.19
+Release:  rc2.0.20
 Summary:  The software RAID arrays user manage tools
 License:  GPLv2+
 URL:      http://www.kernel.org/pub/linux/utils/raid/mdadm/
@@ -37,6 +37,7 @@ Patch6023:  6023-Fix-build-error-for-check.patch
 Patch6024:  6024-Fix-memory-leak-in-file-Manage.patch
 Patch6025:  6025-Manage-fix-check-after-dereference-issue.patch
 Patch6026:  6026-Mdmonitor-Fix-segfault.patch
+Patch6027:  6027-udev-allow-for-udev-attribute-reading-bug.patch
 
 BuildRequires:    systemd gcc binutils
 Requires(post):   systemd coreutils
@@ -102,6 +103,9 @@ install -d -m 710 %{buildroot}/var/run/mdadm/
 %{_mandir}/man*/*
 
 %changelog
+* Wed Aug 28 2024 wuguanghao <wuguanghao3@huawei.cn> - 4.1-rc2.0.20
+- udev: allow udev attribute reading bug
+
 * Thu Jul 11 2024 Deyuan Fan <fandeyuan@kylinos.cn> - 4.1-rc2.0.19
 - Mdmonitor: Fix segfault