[postgis-tickets] [PostGIS] #3436: Memory mistake in ptarray_clone_deep

[PostGIS]

#3436: Memory mistake in ptarray_clone_deep
---------------------+---------------------------
 Reporter:  pramsey  |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 2.2.2
Component:  postgis  |    Version:  2.2.x
 Keywords:           |
---------------------+---------------------------
 The clone sets the npoints and maxpoints of the output to match the input,
 but only allocates npoints worth of space. So if points are added to the
 clone after the operation, Bad Things Happen.
 {{{
 SELECT ST_GeomFromKML('<MultiGeometry>
 <Polygon>
 <outerBoundaryIs>
 <LinearRing>
 <coordinates>121.50835,22.632916 121.508331,22.63293 121.50828,22.632937
 121.508257,22.632941 121.508231,22.632968 121.508207,22.63298
 121.508174,22.632989 121.508131,22.63298 121.508091,22.632967
 121.508055,22.632928 121.508007,22.632852 121.507976,22.632741
 121.507979,22.632604 121.50799,22.632572 121.508011,22.632542
 121.508144,22.632436 121.508168,22.632427 121.508192,22.632425
 121.508219,22.632427 121.508237,22.632436 121.508329,22.632537
 121.508334,22.63256 121.508324,22.632578 121.508254,22.632632
 121.508239,22.632652 121.508232,22.632677 121.508214,22.63272
 121.508193,22.632725 121.508153,22.632723 121.508114,22.632732
 121.508095,22.63275 121.508091,22.632773 121.508095,22.632791
 121.508112,22.632813 121.508141,22.632833 121.508185,22.632842
 121.508226,22.632835 121.508308,22.632806 121.508344,22.632808
 121.50837,22.632819 121.508386,22.632835 121.508391,22.632862
 </coordinates>
 </LinearRing>
 </outerBoundaryIs>
 </Polygon>
 </MultiGeometry>');
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3436>
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