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[Bug 1521795] Re: BasicSurface::set_cursor_image can create references to null pointers

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Kevin DuBois <kevin.dubois@xxxxxxxxxxxxx>
Date: Tue, 22 Dec 2015 18:54:29 -0000
Reply-to: Bug 1521795 <1521795@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: mir
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1521795

Title:
  BasicSurface::set_cursor_image can create references to null pointers

Status in Mir:
  Fix Released
Status in mir package in Ubuntu:
  Fix Released

Bug description:
  Creating references to null pointers is undefined behavior.

  This can happen if a client disables the cursor on a surface via:

   auto conf = mir_cursor_configuration_from_name(mir_disabled_cursor_name);
  mir_surface_configure_cursor(mir_surface, conf);

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