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  1. Qt
  2. QTBUG-86232

AT-SPI + QLineEdit crash due to null pointer dereference

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P1: Critical
    • 5.15.10
    • 5.15.0
    • GUI: Accessibility (a11y)
    • None
    • Linux/X11

    Description

      My application crashes when gnome caribou is enabled and certain GUI elements are clicked on. Initially reported here: https://bugs.archlinux.org/task/67690
      https://bugs.launchpad.net/calibre/+bug/1892646

      Thread 1 "ConnectionListe" received signal SIGSEGV, Segmentation fault.
QLineEdit::cursorPosition (this=0x0) at ../../include/QtWidgets/5.15.0/QtWidgets/private/../../../../../src/widgets/widgets/qwidgetlinecontrol_p.h:310
(gdb) up
#1  0x00007fffea9e8acf in AtSpiAdaptor::notify (this=0x55555648be70, event=0x7fffffffa9c0) at atspiadaptor.cpp:1005
1005	            int pos = iface->textInterface()->cursorPosition();
(gdb) p *iface
$1 = {_vptr.QAccessibleInterface = 0x7fffffffaac0}

      Full backtrace attached.

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            liaqi Liang Qi
            eschwartz Eli Schwartz
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            Dates

              Created:
              Updated:
              Resolved:

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