[postgis-tickets] [PostGIS] #2947: Memory leak in lwgeom_make_valid

PostGIS trac at osgeo.org
Wed Oct 1 07:25:06 PDT 2014


#2947: Memory leak in lwgeom_make_valid
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 Reporter:  strk     |       Owner:  strk         
     Type:  defect   |      Status:  new          
 Priority:  blocker  |   Milestone:  PostGIS 2.1.5
Component:  postgis  |     Version:  2.1.x        
 Keywords:           |  
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Comment(by strk):

 The problem is with collection input when output is not a collection
 anymore, so basically in lwgeom_as_multi, which does an lwgeom_clone() of
 the passed geometry thus NOT cloning the pointarray. As a result neither
 of the two POINTARRAY references are marked as READONLY so you can't free
 one w/out the other being a double-free.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2947#comment:3>
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