[GRASS-git] [OSGeo/grass] 6ccda3: libraries: Fix multiplications converted to a larg...

[Corey White]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: 6ccda375af353bd4d6f7da5ffffcebac10d1a11b
      https://github.com/OSGeo/grass/commit/6ccda375af353bd4d6f7da5ffffcebac10d1a11b
  Author: Corey White <smortopahri at gmail.com>
  Date:   2026-07-15 (Wed, 15 Jul 2026)

  Changed paths:
    M lib/cairodriver/draw_bitmap.c
    M lib/cairodriver/graph.c
    M lib/external/ccmath/hmgen.c
    M lib/external/ccmath/unitary.c
    M lib/gmath/del2g.c
    M lib/gmath/getg.c
    M lib/linkm/new.c
    M lib/pngdriver/graph_close.c
    M lib/pngdriver/graph_set.c
    M lib/raster/get_row.c
    M lib/raster/put_row.c
    M lib/raster3d/cache.c
    M lib/raster3d/misc.c
    M lib/raster3d/tilewrite.c
    M lib/raster3d/volume.c
    M lib/segment/address.c
    M lib/vector/diglib/allocation.c

  Log Message:
  -----------
  libraries: Fix multiplications converted to a larger type (#7705)

Cast the first operand so that products assigned to or compared with
size_t, ssize_t, long, and off_t values are computed in the wide type
instead of int, which can overflow for large dimensions. This covers
buffer sizes in the png and cairo drivers, gmath filter kernels, the
ccmath calloc calls, linkm chunk allocation, raster row buffers,
raster3d tile and volume sizes, segment addressing, and diglib
reallocation.

Fixes 24 CodeQL cpp/integer-multiplication-cast-to-long alerts.



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