Index: src/widgets/fileundomanager.cpp
===================================================================
--- src/widgets/fileundomanager.cpp
+++ src/widgets/fileundomanager.cpp
@@ -33,6 +33,7 @@
 #include <kmessagebox.h>
 #include <kjobtrackerinterface.h>
 #include <kio/jobuidelegate.h>
+#include <job_p.h>
 
 #include <QDateTime>
 #include <QDBusConnection>
@@ -112,6 +113,11 @@
         if (showProgressInfo) {
             KIO::getJobTracker()->registerJob(this);
         }
+
+        d_ptr->m_privilegeExecutionEnabled = true;
+        d_ptr->m_operationType = d_ptr->Other;
+        d_ptr->m_caption = i18n("Undo Changes");
+        d_ptr->m_message = i18n("Undoing this operation requires root privileges. Do you want to continue?");
     }
     virtual ~UndoJob() {}
 
@@ -509,6 +515,7 @@
         QUrl dir = m_dirStack.pop();
         //qDebug() << "creatingDir" << dir;
         m_currentJob = KIO::mkdir(dir);
+        m_currentJob->setParentJob(m_undoJob);
         m_undoJob->emitCreatingDir(dir);
     } else {
         m_undoState = MOVINGFILES;
@@ -528,34 +535,38 @@
         if (type == BasicOperation::Directory) {
             if (op.m_renamed) {
                 //qDebug() << "rename" << op.m_dst << op.m_src;
-                m_currentJob = KIO::rename(op.m_dst, op.m_src, KIO::HideProgressInfo);
+                m_currentJob = KIO::rename(op.m_dst, op.m_src, KIO::HideProgressInfo | KIO::PrivilegeExecution);
                 m_undoJob->emitMoving(op.m_dst, op.m_src);
             } else {
                 assert(0);    // this should not happen!
             }
         } else if (type == BasicOperation::Link) {
             //qDebug() << "symlink" << op.m_target << op.m_src;
-            m_currentJob = KIO::symlink(op.m_target, op.m_src, KIO::Overwrite | KIO::HideProgressInfo);
+            m_currentJob = KIO::symlink(op.m_target, op.m_src, KIO::Overwrite | KIO::HideProgressInfo | KIO::PrivilegeExecution);
         } else if (m_current.m_type == FileUndoManager::Copy) {
             if (m_undoState == MOVINGFILES) { // dest not stat'ed yet
                 // Before we delete op.m_dst, let's check if it was modified (#20532)
                 //qDebug() << "stat" << op.m_dst;
                 m_currentJob = KIO::stat(op.m_dst, KIO::HideProgressInfo);
                 m_undoState = STATINGFILE; // temporarily
                 return; // no pop() yet, we'll finish the work in slotResult
             } else { // dest was stat'ed, and the deletion was approved in slotResult
-                m_currentJob = KIO::file_delete(op.m_dst, KIO::HideProgressInfo);
+                m_currentJob = KIO::file_delete(op.m_dst, KIO::HideProgressInfo | KIO::PrivilegeExecution);
                 m_undoJob->emitDeleting(op.m_dst);
                 m_undoState = MOVINGFILES;
             }
         } else if (m_current.isMoveCommand()
                    || m_current.m_type == FileUndoManager::Trash) {
             //qDebug() << "file_move" << op.m_dst << op.m_src;
-            m_currentJob = KIO::file_move(op.m_dst, op.m_src, -1, KIO::Overwrite | KIO::HideProgressInfo);
+            m_currentJob = KIO::file_move(op.m_dst, op.m_src, -1, KIO::Overwrite | KIO::HideProgressInfo | KIO::PrivilegeExecution);
             m_currentJob->uiDelegateExtension()->createClipboardUpdater(m_currentJob, JobUiDelegateExtension::UpdateContent);
             m_undoJob->emitMoving(op.m_dst, op.m_src);
         }
 
+        if (m_currentJob) {
+            m_currentJob->setParentJob(m_undoJob);
+        }
+
         m_current.m_opStack.removeLast();
         // The above KIO jobs are lowlevel, they don't trigger KDirNotify notification
         // So we need to do it ourselves (but schedule it to the end of the undo, to compress them)
@@ -575,7 +586,8 @@
     if (!m_fileCleanupStack.isEmpty()) {
         QUrl file = m_fileCleanupStack.pop();
         //qDebug() << "file_delete" << file;
-        m_currentJob = KIO::file_delete(file, KIO::HideProgressInfo);
+        m_currentJob = KIO::file_delete(file, KIO::HideProgressInfo | KIO::PrivilegeExecution);
+        m_currentJob->setParentJob(m_undoJob);
         m_undoJob->emitDeleting(file);
 
         QUrl url = file.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash);
@@ -595,6 +607,7 @@
         QUrl dir = m_dirCleanupStack.pop();
         //qDebug() << "rmdir" << dir;
         m_currentJob = KIO::rmdir(dir);
+        m_currentJob->setParentJob(m_undoJob);
         m_undoJob->emitDeleting(dir);
         addDirToUpdate(dir);
     } else {