[SCM] PostGIS branch stable-3.3 updated. 3.3.5-3-g2c9db6063
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Wed Nov 22 13:11:40 PST 2023
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The branch, stable-3.3 has been updated
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from ad37dbdfbef902b7d172a4e1025d17cf80cd770b (commit)
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- Log -----------------------------------------------------------------
commit 2c9db60637bb31b5dead723baa356dc6ddf6ab40
Author: Paul Ramsey <pramsey at cleverelephant.ca>
Date: Wed Nov 22 12:40:21 2023 -0800
Fix ST_GeneratePoints invalid memory alloc request, references #5571
diff --git a/NEWS b/NEWS
index d0d85c978..69085b9da 100644
--- a/NEWS
+++ b/NEWS
@@ -7,6 +7,9 @@ Proj 6.1+, and PostgreSQL 15+.
* Bug Fixes and Enhancements *
+ - #5571, Memory over-allocation for narrow inputs (Paul Ramsey)
+
+
PostGIS 3.3.5
2023/11/19
This version requires PostgreSQL 11-16, GEOS 3.6 or higher, and Proj 4.9+
diff --git a/liblwgeom/lwgeom_geos.c b/liblwgeom/lwgeom_geos.c
index afdad095a..7192ee503 100644
--- a/liblwgeom/lwgeom_geos.c
+++ b/liblwgeom/lwgeom_geos.c
@@ -1714,8 +1714,9 @@ lwpoly_to_points(const LWPOLY* lwpoly, uint32_t npoints, int32_t seed)
return NULL;
}
- /* Gross up our test set a bit to increase odds of getting coverage in one pass */
- sample_npoints = npoints * bbox_area / area;
+ /* Gross up our test set a bit (but not too much) to increase
+ * odds of getting coverage in one pass */
+ sample_npoints = npoints * FP_MIN(bbox_area / area, 10000.0);
/* We're going to generate points using a sample grid as described
* http://lin-ear-th-inking.blogspot.ca/2010/05/more-random-points-in-jts.html to try and get a more uniform
-----------------------------------------------------------------------
Summary of changes:
NEWS | 3 +++
liblwgeom/lwgeom_geos.c | 5 +++--
2 files changed, 6 insertions(+), 2 deletions(-)
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