[GRASS-git] [OSGeo/grass] c33eeb: parallelized raster modules: fix buffer sizes (#3070)

[Markus Metz]

  Branch: refs/heads/releasebranch_8_3
  Home:   https://github.com/OSGeo/grass
  Commit: c33eebe61ad00c75dece78c6e1bb07fd1aba444e
      https://github.com/OSGeo/grass/commit/c33eebe61ad00c75dece78c6e1bb07fd1aba444e
  Author: Markus Metz <33666869+metzm at users.noreply.github.com>
  Date:   2023-09-03 (Sun, 03 Sep 2023)

  Changed paths:
    M raster/r.neighbors/main.c
    M raster/r.patch/main.c
    M raster/r.resamp.filter/main.c
    M raster/r.series/main.c

  Log Message:
  -----------
  parallelized raster modules: fix buffer sizes (#3070)

* parallelized raster modules: fix buffer sizes

* safety check for unsigned integer subtraction