diff --git a/0001-modify-my_strncat-function.patch b/0001-modify-my_strncat-function.patch
new file mode 100644
index 0000000000000000000000000000000000000000..4bfd5db83051bec6040f453304dd60aa27aa3c4b
--- /dev/null
+++ b/0001-modify-my_strncat-function.patch
@@ -0,0 +1,15 @@
+diff --git a/lib/sysfs_utils.c b/lib/sysfs_utils.c
+index 46e0849..c0176d1 100644
+--- a/lib/sysfs_utils.c
++++ b/lib/sysfs_utils.c
+@@ -375,8 +375,8 @@ char *my_strncat(char *to, const char *from, size_t max)
+ {
+ 	size_t i = 0;
+ 
+-	while (i < max && to[i] != '\0')
++	while (to[i] != '\0')
+ 		i++;
+-	my_strncpy(to+i, from, max-i);
++	my_strncpy(to+i, from, max);
+ 	return to;
+ }
diff --git a/sysfsutils.spec b/sysfsutils.spec
index 2c3f91f46207744653e33440b600d5c0f67e9e1d..1758523f8d3a64c2517e9256932088d0661f55a2 100644
--- a/sysfsutils.spec
+++ b/sysfsutils.spec
@@ -1,4 +1,4 @@
-%define anolis_release 4
+%define anolis_release 5
 
 %global so_major_version 2
 %global so_minor_version 0
@@ -13,6 +13,8 @@ License:        GPLv2
 
 Source0:        https://github.com/linux-ras/sysfsutils/archive/v%{version}.tar.gz
 
+Patch1:         0001-modify-my_strncat-function.patch
+
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  libtool
@@ -89,6 +91,15 @@ find %{buildroot} -type f -name "*.la" -delete
 
 
 %changelog
+* Tue Sep 10 2024 songliang <YS.songliang@h3c.com> - 2.1.1-5
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:
+	The meaning of the "len" parameter in the my_strncat function is the size limit for copying characters from "from", not the size limit for "to" after copying.
+        Also, the "#define safestrcat(to, from) my_strncat(to, from, sizeof(to) - strlen(to) - 1)" has already imposed a limit on max based on the size of "to".
+        Modify the function to prevent truncation of content when too many bytes are passed to the my_strcat function.
+
 * Mon Mar 20 2023 Guyu Wang <guyu.wgy@linux.alibaba.com> - 2.1.1-4
 - Rename man file from systool.1.gz to systool.1.zst