[geos-devel] [GEOS] #850: Segfault in geos::algorithm::ConvexHull::preSort with extreme outlier

[GEOS]

#850: Segfault in geos::algorithm::ConvexHull::preSort with extreme outlier
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 Reporter:  sgillies    |       Owner:  geos-devel@…
     Type:  defect      |      Status:  new
 Priority:  major       |   Milestone:  3.6.4
Component:  Default     |     Version:  3.5.1
 Severity:  Unassigned  |  Resolution:
 Keywords:              |
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Comment (by dbaston):

 Yup, crashes PostGIS trunk w/GEOS master. Here is a failing wkb:


 {{{01040000001100000001010000002bd3a24002bcb0417ff59d2051e25c4101010000003aebcec70a8b3cbfdb123fe713a2e8be0101000000afa0bb8638b770bf7fc1d77d0dda1cbf01010000009519cb944ce070bf1a46cd7df4201dbf010100000079444b4cd1937cbfa6ca29ada6a928bf010100000083323f09e16c7cbfd36d07ee0b8828bf01010000009081b8f066967ebf915fbc9ebe652abf0101000000134cf280633bc1bf37b754972dbe6dbf0101000000ea992c094df585bf1bbabc8a42f332bf0101000000c0a13c7fb31186bf9af7b10cc50b33bf0101000000a0bba15a0a7188bf8fba7870e91735bf01010000000fc8701903db93bf93bdbe93b52241bf01010000007701a73b29cc90bfb770bc3732fe3cbf010100000036fa45b75b8b8cbf1cfca5bf59a238bf0101000000a54e773f7f287ebf910d4621e5062abf01010000004b5b5dc4196f55bfa51f0579717f02bf01010000007e549489513a5fbfa57bacea34f30abf}}}

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Ticket URL: <https://trac.osgeo.org/geos/ticket/850#comment:2>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).