diff --git a/backport-umount-do-not-move-busy-network-mounts.patch b/backport-umount-do-not-move-busy-network-mounts.patch
new file mode 100644
index 0000000000000000000000000000000000000000..05d623f6598713079d46c8993e47e578b5c7ef82
--- /dev/null
+++ b/backport-umount-do-not-move-busy-network-mounts.patch
@@ -0,0 +1,88 @@
+From cef2181cda87cbecd6e92f6d7a3bb8556067a88e Mon Sep 17 00:00:00 2001
+From: Antonio Alvarez Feijoo <antonio.feijoo@suse.com>
+Date: Mon, 10 Mar 2025 12:21:26 +0100
+Subject: [PATCH] umount: do not move busy network mounts
+
+If a network mount returns EBUSY on umount, the logic introduced in
+6dc68a00cfc816678fd713b12ae2a4cf2ae6da85 causes shutdown to hang indefinitely on
+`fstatat()` (i.e., within `is_dir(m->path, true)`). Hence, skip this logic for
+network mounts (following the same motivation we use to skip read-only mounts in
+this kind of file systems).
+
+Fixes 6dc68a00cfc816678fd713b12ae2a4cf2ae6da85
+---
+ src/shutdown/umount.c | 14 +++++++++-----
+ src/shutdown/umount.h |  2 +-
+ 2 files changed, 10 insertions(+), 6 deletions(-)
+
+diff --git a/src/shutdown/umount.c b/src/shutdown/umount.c
+index 220ae2e..068d18a 100644
+--- a/src/shutdown/umount.c
++++ b/src/shutdown/umount.c
+@@ -64,7 +64,7 @@ int mount_points_list_get(const char *mountinfo, MountPoint **head) {
+                 struct libmnt_fs *fs;
+                 const char *path, *fstype;
+                 unsigned long remount_flags = 0u;
+-                bool try_remount_ro, is_api_vfs;
++                bool try_remount_ro, is_api_vfs, is_network;
+                 _cleanup_free_ MountPoint *m = NULL;
+ 
+                 r = mnt_table_next_fs(table, iter, &fs);
+@@ -99,6 +99,7 @@ int mount_points_list_get(const char *mountinfo, MountPoint **head) {
+                     PATH_STARTSWITH_SET(path, "/dev", "/sys", "/proc"))
+                         continue;
+ 
++		is_network = fstype_is_network(fstype);
+                 is_api_vfs = fstype_is_api_vfs(fstype);
+ 
+                 /* If we are in a container, don't attempt to read-only mount anything as that brings no real
+@@ -109,7 +110,7 @@ int mount_points_list_get(const char *mountinfo, MountPoint **head) {
+                  * leave a "dirty fs") and could hang if the network is down.  Note that umount2() is more
+                  * careful and will not hang because of the network being down. */
+                 try_remount_ro = detect_container() <= 0 &&
+-                                 !fstype_is_network(fstype) &&
++                                 !is_network &&
+                                  !is_api_vfs &&
+                                  !fstype_is_ro(fstype) &&
+                                  !fstab_test_yes_no_option(options, "ro\0rw\0");
+@@ -153,7 +154,11 @@ int mount_points_list_get(const char *mountinfo, MountPoint **head) {
+                         /* Unmount sysfs/procfs/… lazily, since syncing doesn't matter there, and it's OK if
+                          * something keeps an fd open to it. */
+                         .umount_lazily = is_api_vfs,
+-                        .leaf = leaf,
++
++                        /* If a mount point is not a leaf, moving it would invalidate our mount table.
++                         * If a mount point is on the network and the network is down, it can hang and block
++                         * the shutdown. */
++                        .umount_move_if_busy = leaf && !is_network,
+                 };
+ 
+                 m->path = strdup(path);
+@@ -410,10 +415,9 @@ static int mount_points_list_umount(MountPoint **head, bool *changed, bool last_
+                         *changed = true;
+ 
+                 /* If a mount is busy, we move it to not keep parent mount points busy.
+-                 * If a mount point is not a leaf, moving it would invalidate our mount table.
+                  * More moving will occur in next iteration with a fresh mount table.
+                  */
+-                if (r != -EBUSY || !m->leaf)
++                if (r != -EBUSY || !m->umount_move_if_busy)
+                         continue;
+ 
+                 _cleanup_free_ char *dirname = NULL;
+diff --git a/src/shutdown/umount.h b/src/shutdown/umount.h
+index f8f9ae8..e76106c 100644
+--- a/src/shutdown/umount.h
++++ b/src/shutdown/umount.h
+@@ -18,7 +18,7 @@ typedef struct MountPoint {
+         unsigned long remount_flags;
+         bool try_remount_ro;
+         bool umount_lazily;
+-        bool leaf;
++        bool umount_move_if_busy;
+         LIST_FIELDS(struct MountPoint, mount_point);
+ } MountPoint;
+ 
+-- 
+2.33.0
+
diff --git a/systemd.spec b/systemd.spec
index a5c77026b0030ead531e7f2e82c788f61f297a7e..2f7c38d49d927106249387a34dbbc80fe5f2c0c1 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -27,7 +27,7 @@
 Name:           systemd
 Url:            https://systemd.io/
 Version:        255
-Release:        55
+Release:        56
 License:        LGPL-2.1-or-later AND MIT AND GPL-2.0-or-later
 Summary:        System and Service Manager
 
@@ -942,6 +942,7 @@ Patch6880:      backport-core-introduce-Unit.dependency_generation-counter-an.pa
 Patch6881:      backport-test-add-test-case-for-issue-36031.patch
 Patch6882:      backport-core-escape-UTF-8-in-mount-unit-Where-field-before-s.patch
 Patch6883:      backport-fd-util-fix-path_is_root_at-when-dealing-wi.patch
+Patch6884:      backport-umount-do-not-move-busy-network-mounts.patch
 
 Patch9008:      update-rtc-with-system-clock-when-shutdown.patch
 Patch9009:      udev-add-actions-while-rename-netif-failed.patch
@@ -2544,6 +2545,9 @@ fi
 %{_unitdir}/veritysetup.target
 
 %changelog
+* Sat Dec 6 2025 hongjinghao <hongjinghao@h-partners.com> - 255-56
+- umount do not move busy network mounts
+
 * Wed Sep 24 2025 wangfuqiang <wangfuqiang49@jd.com> - 255-55
 - fix udevadm trigger coredump after execute mount /
 * Tue Sep 09 2025 Linux_zhang <zhangruifang@h-partners.com> - 255-54