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Crash would happen when a linked ID would become missing, that was 'pre-declared' and used only once as a 'weak link' in another library stored before the one it came from. In that case, the place-holder generated in read code would be freed in `read_library_clear_weak_links`, when handling its 'owner' library, but since all previous libraries in the list had already been 'lib_linked' and their filedata (and related libmap) freed, the update of the libmaps in `read_library_clear_weak_links` would not apply to data from those previous libraries, leading to ID pointers there pointing to freed memory. This fix should also be backported to 2.93.
.. Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing. .. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg :scale: 50 % :align: center Project Pages ------------- - `Main Website <http://www.blender.org>`__ - `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__ - `User Community <https://www.blender.org/community/>`__ Development ----------- - `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__ - `Code Review & Bug Tracker <https://developer.blender.org>`__ - `Developer Forum <https://devtalk.blender.org>`__ - `Developer Documentation <https://wiki.blender.org>`__ License ------- Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license. See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.