[PostGIS] #6061: segmentation fault when loading geometries

[PostGIS]

#6061: segmentation fault when loading geometries
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  Reporter:  maxsynytsky1v  |      Owner:  pramsey
      Type:  defect         |     Status:  new
  Priority:  medium         |  Milestone:  PostGIS 3.6.2
 Component:  postgis        |    Version:  3.6.x
Resolution:                 |   Keywords:
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Comment (by pramsey):

 Pretty sure I see the issue, which I am surprised never showed up before?
 20 years in? But the parser is returning a error location of 1131025 when
 the WKT input is only 1047553 bytes long. This rather screws up the logic
 in lwmessage_truncate, I think. I will have to see if I can generate this
 organically on smaller inputs. One task is just to make lwmessage_truncate
 more robust. Another is to explore why the error location is 10% too
 large.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/6061#comment:15>
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