1 files changed, 2 insertions, 0 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 820af6a1dd6b..cd1e9681a0cf 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1370,6 +1370,8 @@ void umount_tree(struct mount *mnt, int how)
         }
         if (last) {
                 last->mnt_hash.next = unmounted.first;
+                if (unmounted.first)
+                        unmounted.first->pprev = &last->mnt_hash.next;
                 unmounted.first = tmp_list.first;
                 unmounted.first->pprev = &unmounted.first;
         }