diff --git a/0031-Fix-memory-leak-in-file-Kill.patch b/0031-Fix-memory-leak-in-file-Kill.patch
new file mode 100644
index 0000000000000000000000000000000000000000..4ed0ffe37b80c87630f590d186316b272be923b2
--- /dev/null
+++ b/0031-Fix-memory-leak-in-file-Kill.patch
@@ -0,0 +1,54 @@
+From 8fd0c565b09ba449418d7d604ceba66313246152 Mon Sep 17 00:00:00 2001
+From: Guanqin Miao <miaoguanqin@huawei.com>
+Date: Wed, 11 Sep 2024 13:53:54 +0800
+Subject: [PATCH] Fix memory leak in file Kill
+
+When we test mdadm with asan, we found some memory leaks in Kill.c
+We fix these memory leaks based on code logic.
+
+Signed-off-by: Guanqin Miao <miaoguanqin@huawei.com>
+Signed-off-by: Li Xiao Keng <lixiaokeng@huawei.com>
+Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
+Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
+---
+ Kill.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/Kill.c b/Kill.c
+index bfd0efd..43c9abe 100644
+--- a/Kill.c
++++ b/Kill.c
+@@ -41,6 +41,7 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
+ 	 *  4 - failed to find a superblock.
+ 	 */
+ 
++	bool free_super = false;
+ 	int fd, rv = 0;
+ 
+ 	if (force)
+@@ -52,8 +53,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
+ 				dev);
+ 		return 2;
+ 	}
+-	if (st == NULL)
++	if (st == NULL) {
+ 		st = guess_super(fd);
++		free_super = true;
++	}
+ 	if (st == NULL || st->ss->init_super == NULL) {
+ 		if (verbose >= 0)
+ 			pr_err("Unrecognised md component device - %s\n", dev);
+@@ -77,6 +80,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
+ 			rv = 0;
+ 		}
+ 	}
++	if (free_super && st) {
++		st->ss->free_super(st);
++		free(st);
++	}
+ 	close(fd);
+ 	return rv;
+ }
+-- 
+2.23.0
+
diff --git a/mdadm.spec b/mdadm.spec
index 44dd975a0e6a982d7a143c75ba7bed853d88e1d6..d378bf7fbca8a699a0285bf66c08bc1fd6506b41 100644
--- a/mdadm.spec
+++ b/mdadm.spec
@@ -1,6 +1,6 @@
 Name:     mdadm
 Version:  4.2
-Release:  18
+Release:  19
 Summary:  The software RAID arrays user manage tools
 License:  GPLv2+
 URL:      http://www.kernel.org/pub/linux/utils/raid/mdadm/
@@ -40,6 +40,7 @@ Patch27: 0027-mdadm-mdopen-fix-coverity-issue-CHECKED_RETURN.patch
 Patch28: 0028-mdadm-super1-fix-coverity-issue-CHECKED_RETURN.patch
 Patch39: 0029-mdadm-util.c-fix-coverity-issues.patch
 Patch30: 0030-mdadm-sysfs.c-fix-coverity-issues.patch
+Patch31: 0031-Fix-memory-leak-in-file-Kill.patch
 
 BuildRequires:    systemd gcc binutils libudev-devel
 
@@ -106,6 +107,9 @@ install -d -m 710 %{buildroot}/var/run/mdadm/
 %{_mandir}/man*/*
 
 %changelog
+* Wed Sep 11 2024 cenhuilin <cenhuilin@kylinos.cn> - 4.2-19
+- Fix memory leak in file Kill
+
 * Mon Aug 26 2024 wuguanghao <wuguanghao3@huawei.com> - 4.2-18
 - backport bugfix patches from community