On Wed, 31 Jul 2024 22:33:10 +0200 Jakub Wilk <jw...@jwilk.net> wrote:>
Package: gir1.2-gtk-3.0
Version: 3.24.38-2~deb12u1
Gtk.Clipboard.request_rich_text() segfaults for me:
$ python3 request_rich_text.py
Segmentation fault
Backtrace:
#0 0xf5b23141 in gtk_clipboard_request_rich_text (clipboard=0x877a8f8,
buffer=0x877b180, callback=0xf7647008, user_data=0x877fb80) at
../../../gtk/gtkclipboard.c:1177
#1 0xf7fac7d8 in ffi_call_i386 () at ../src/x86/sysv.S:121
-- System Information:
Architecture: i386
Versions of packages gir1.2-gtk-3.0 depends on:
ii gir1.2-atk-1.0 2.46.0-5
ii gir1.2-freedesktop 1.74.0-3
ii gir1.2-gdkpixbuf-2.0 2.42.10+dfsg-1+deb12u1
ii gir1.2-glib-2.0 1.74.0-3
ii gir1.2-pango-1.0 1.50.12+ds-1
ii libgtk-3-0 3.24.38-2~deb12u1
ii libgtk-3-common 3.24.38-2~deb12u1
--
Jakub Wilk
Hello,
just tried to have a look at it and could reproduce it also on amd64.
It looks like function gtk_clipboard_request_rich_text
does dereference info->atoms while it holds a null pointer.
Could not find an upstream bug, and it looks like the
file gtk/gtkclipboard.c got removed in the git repository.
(At least in the main branch for gtk4.)
Kind regards,
Bernhard
(gdb) bt
#0 0x00007f634578e393 in gtk_clipboard_request_rich_text (clipboard=0x54b67c0,
buffer=<optimized out>, callback=0x7f6355b9a010, user_data=0x54796a0) at
../../../gtk/gtkclipboard.c:1177
#1 0x00007f63559a93fe in ffi_call_unix64 () at ../src/x86/unix64.S:104
...
(gdb) print info->current_atom
$6 = 0
(gdb) print info->atoms
$7 = (GdkAtom *) 0x0
(gdb) list gtk_clipboard_request_rich_text
1156 void
1157 gtk_clipboard_request_rich_text (GtkClipboard
*clipboard,
1158 GtkTextBuffer
*buffer,
1159 GtkClipboardRichTextReceivedFunc
callback,
1160 gpointer
user_data)
1161 {
1162 RequestRichTextInfo *info;
1163
1164 g_return_if_fail (clipboard != NULL);
1165 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1166 g_return_if_fail (callback != NULL);
1167
1168 info = g_new (RequestRichTextInfo, 1);
1169 info->callback = callback;
1170 info->atoms = NULL;
1171 info->n_atoms = 0;
1172 info->current_atom = 0;
1173 info->user_data = user_data;
1174
1175 info->atoms = gtk_text_buffer_get_deserialize_formats (buffer,
&info->n_atoms);
1176
1177 gtk_clipboard_request_contents (clipboard,
info->atoms[info->current_atom],
1178 request_rich_text_received_func,
1179 info);
1180 }
(gdb)
