Crash while initialising a console app #23981
Description
Description
Spotted while trying to run kicad-cli and found under the debugger that the crash comes from within wxwidgets.
The following code crashes:
#include <wx/wx.h>
class App : public wxAppConsole
{
public:
bool OnInit() override
{
return true;
}
};
IMPLEMENT_APP_CONSOLE(App);compiled simply with
g++ `wx-config --cxxflags` main.cpp -o main `wx-config --libs`with the following error:
(process:37226): GLib-GObject-CRITICAL **: 19:36:01.730: g_object_get: assertion 'G_IS_OBJECT (object)' failed
free(): invalid pointer
fish: Job 1, './main' terminated by signal SIGABRT (Abort)
backtrace:
#0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1 0x00007ffff6aac8a3 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#2 0x00007ffff6a5c668 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#3 0x00007ffff6a444b8 in __GI_abort () at abort.c:79
#4 0x00007ffff6a45390 in __libc_message (fmt=fmt@entry=0x7ffff6bbc55d "%s\n") at ../sysdeps/posix/libc_fatal.c:150
#5 0x00007ffff6ab67b7 in malloc_printerr (str=str@entry=0x7ffff6bba02b "free(): invalid pointer") at malloc.c:5765
#6 0x00007ffff6ab8a74 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=have_lock@entry=0) at malloc.c:4500
#7 0x00007ffff6abb353 in __GI___libc_free (mem=<optimized out>) at malloc.c:3391
#8 0x00007ffff79cabbd in UpdatePreferDark(GVariant*) (value=value@entry=0x7fffe00025d0) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/gtk/settings.cpp:201
#9 0x00007ffff79cad0a in wxSystemSettingsModule::OnInit() (this=<optimized out>) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/gtk/settings.cpp:1235
#10 0x00007ffff711ee62 in wxModule::Init() (this=0x5555555e8bc0) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/include/wx/module.h:33
#11 wxModule::DoInitializeModule(wxModule*, wxVector<wxModule*>&) (module=0x5555555e8bc0, initializedModules=...) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/module.cpp:137
#12 0x00007ffff7122418 in wxModule::InitializeModules() () at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/module.cpp:168
#13 0x00007ffff71157a0 in DoCommonPostInit() () at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/init.cpp:270
#14 0x00007ffff7115faa in wxEntryStart(int&, wchar_t**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/init.cpp:336
#15 0x00007ffff7116236 in wxInitialize(int&, wchar_t**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/init.cpp:532
#16 0x00007ffff7116360 in wxInitializer::wxInitializer(int&, wchar_t**) (argv=<optimized out>, argc=<optimized out>, this=<synthetic pointer>)
at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/include/wx/init.h:92
#17 wxEntry(int&, wchar_t**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/wxwidgets/wxWidgets-3.2.3/src/common/init.cpp:467
#18 0x000055555555d2cb in main ()
It seems, running it step-by-step under the debugger, that it crashes while freeing the theme name:
wxWidgets/src/gtk/settings.cpp
Line 201 in 7fbe369
Platform and version information
- wxWidgets version you use: 3.2.3
- wxWidgets port you use: wxGTK
- OS and its version: Archlinux
- GTK version: 3.24.38
- Which GDK backend is used: X11
- Current theme: Not sure, but it seems to start with a v from the debugger