x11: Check return of gdk_x11_get_xatom_name_for_display
authorDr. David Alan Gilbert <dave@treblig.org>
Thu, 31 Mar 2022 14:56:09 +0000 (15:56 +0100)
committerMatthias Clasen <mclasen@redhat.com>
Thu, 21 Apr 2022 23:17:54 +0000 (19:17 -0400)
commit66117d1017e082c2d81008f8103e44c44c2d3356
tree2655cfcf117c8534433e30890d72a041753dc330
parent177302cf4dcdfe2d6c7a03057e5206c8175f0798
x11: Check return of gdk_x11_get_xatom_name_for_display

When given an invalid atom, gdk_x11_get_xatom_name_for_display can
return NULL and trigger a seg in gdk_x11_clipboard_formats_from_atoms.
Check for NULL.

Why I'm seeing a bad atom there is probably a separate question.
https://bugzilla.redhat.com/show_bug.cgi?id=2037786
gdk/x11/gdkclipboard-x11.c