Add safety check

Refs #44445
qgis · Aug 2, 2021 · 30f87a7 · 30f87a7
1 parent 33dcd13
commit 30f87a7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/core/pal/pointset.cpp b/src/core/pal/pointset.cpp
@@ -558,6 +558,8 @@ void PointSet::offsetCurveByDistance( double distance )
   try
   {
     newGeos = GEOSOffsetCurve_r( geosctxt, mGeos, distance, 0, GEOSBUF_JOIN_MITRE, 2 );
+    if ( !newGeos )
+      return;
 
     // happens sometime, if the offset curve self-intersects
     if ( GEOSGeomTypeId_r( geosctxt, newGeos ) == GEOS_MULTILINESTRING )