https://bugs.kde.org/show_bug.cgi?id=389049

            Bug ID: 389049
           Summary: stuck with sudo and wrong password
           Product: frameworks-kdesu
           Version: 5.42.0
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

- run `/usr/lib/x86_64-linux-gnu/libexec/kf5/kdesu  -t ls`
- enter wrong password
- dialog stuck


Thread 6 (Thread 0x7f20ad5e6700 (LWP 3462)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f20b2d0e7f3 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f20b2d0e657 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f20d42636ba in start_thread (arg=0x7f20ad5e6700) at
pthread_create.c:333
#4  0x00007f20d569e3dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f20adde7700 (LWP 3461)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f20b2d0e7f3 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f20b2d0e657 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f20d42636ba in start_thread (arg=0x7f20adde7700) at
pthread_create.c:333
#4  0x00007f20d569e3dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f20ae5e8700 (LWP 3460)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f20b2d0e7f3 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f20b2d0e657 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f20d42636ba in start_thread (arg=0x7f20ae5e8700) at
pthread_create.c:333
#4  0x00007f20d569e3dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f20bc912700 (LWP 3456)):
#0  0x00007f20d569270d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20d262738c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f20d262749c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f20d5fb96cb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20d5f61e2a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20d5d8a8f4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f20d190a315 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f20d5d8f709 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f20d42636ba in start_thread (arg=0x7f20bc912700) at
pthread_create.c:333
#9  0x00007f20d569e3dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f20ca0fe700 (LWP 3455)):
#0  0x00007f20d569270d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20d4b37c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f20d4b398d7 in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f20cc6551f9 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f20d5d8f709 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20d42636ba in start_thread (arg=0x7f20ca0fe700) at
pthread_create.c:333
#6  0x00007f20d569e3dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f20d84198c0 (LWP 3454)):
#0  0x00007f20d568e24d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20d7b0c778 in read (__nbytes=32768, __buf=0x12cb078,
__fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  KDESu::PtyProcess::readAll (this=this@entry=0x7ffe96ba7358,
block=<optimized out>, block@entry=true)
    at /workspace/build/src/ptyprocess.cpp:207
#3  0x00007f20d7b0cb5e in KDESu::PtyProcess::readLine
(this=this@entry=0x7ffe96ba7358, block=block@entry=true)
    at /workspace/build/src/ptyprocess.cpp:228
#4  0x00007f20d7b1078a in KDESu::SuProcess::converseSU
(this=this@entry=0x7ffe96ba7358, password=password@entry=0x12960d8 "asdf")
    at /workspace/build/src/suprocess.cpp:222
#5  0x00007f20d7b10f52 in KDESu::SuProcess::exec (this=0x7ffe96ba7358,
password=0x12960d8 "asdf", check=1)
    at /workspace/build/src/suprocess.cpp:148
#6  0x0000000000408ae2 in ?? ()
#7  0x00007f20d802f035 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#8  0x00007f20d5f912b9 in QObject::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f20d7440163 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f20d7400b9c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f20d74085a7 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f20d5f63df8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f20d5f665db in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f20d5fba0a3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f20d2627197 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f20d26273f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f20d262749c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f20d5fb96af in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f20d5f61e2a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f20d75ee6c7 in QDialog::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00000000004078ca in ?? ()
#22 0x00007f20d55b7830 in __libc_start_main (main=0x405c70, argc=6,
argv=0x7ffe96ba74d8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7ffe96ba74c8) at
../csu/libc-start.c:291
#23 0x00000000004082c9 in _start ()

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