[GRASS-dev] [GRASS GIS] #3062: Segmentation fault with r.buffer

[GRASS GIS]

#3062: Segmentation fault with r.buffer
-----------------------+-------------------------
  Reporter:  escheper  |      Owner:  grass-dev@…
      Type:  defect    |     Status:  new
  Priority:  blocker   |  Milestone:  7.0.5
 Component:  Raster    |    Version:  7.0.4
Resolution:            |   Keywords:  r.buffer
       CPU:  Other     |   Platform:  Linux
-----------------------+-------------------------

Comment (by neteler):

 Replying to [comment:7 escheper]:
 > {{{
 >         G_message(_("cur_zone: %i ZONE_INCR: %i ndist: %i to_ptr:
 %i"),cur_zone,ZONE_INCR,ndist,to_ptr);
 >         if ((cur_zone = *--to_ptr))
 >             cur_zone -= ZONE_INCR;
 >         else
 >             cur_zone = ndist;
 > }}}
 ...
 > cur_zone: 16538 ZONE_INCR: 2 ndist: 1 to_ptr: -2116621104

 Good analysis, this number looks like an integer overflow to me (it is
 negative). A C expert wanted here...

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3062#comment:8>
GRASS GIS <https://grass.osgeo.org>