[postgis-tickets] [SCM] PostGIS branch stable-3.0 updated. 3.0.1-32-g079c786

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- Log -----------------------------------------------------------------
commit 079c786181a39065f886a2996d4c59451d8e8645
Author: Raúl Marín <git at rmr.ninja>
Date:   Wed Jul 29 17:43:57 2020 +0200

    Avoid double freeing due to gidx_merge
    
    References #4691

diff --git a/NEWS b/NEWS
index 70eb7d0..5c9921f 100644
--- a/NEWS
+++ b/NEWS
@@ -12,6 +12,7 @@ PostGIS 3.0.2
   - #4702, Legacy ST_Locate_Between_Measures is wrong (Kaplas80)
   - #4699, crash on null input to ST_Union(raster, otherarg) (Jaime Casanova, 2ndQuadrant)
   - #4716, Fix several issues with pkg-config in the configure script (Raúl Marín)
+  - #4691, Fix segfault during gist index creation with empty geometries (Raúl Marín)
 
 PostGIS 3.0.1
 2020/02/20
diff --git a/postgis/gserialized_gist_nd.c b/postgis/gserialized_gist_nd.c
index 8475446..2ea7a1c 100644
--- a/postgis/gserialized_gist_nd.c
+++ b/postgis/gserialized_gist_nd.c
@@ -173,7 +173,8 @@ gidx_merge(GIDX **b_union, GIDX *b_new)
 	/* Q: Unknown is 0 dimensions. Should we never modify unknown instead? (ticket #4232) */
 	if (gidx_is_unknown(*b_union))
 	{
-		*b_union = b_new;
+		pfree(*b_union);
+		*b_union = gidx_copy(b_new);
 		return;
 	}
 

-----------------------------------------------------------------------

Summary of changes:
 NEWS                          | 1 +
 postgis/gserialized_gist_nd.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)


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