[Proj] gdalinfo error and subsequent segfault with proj-5.0.x

[Markus Metz]

I observed a segfault in gdalinfo (2.2.3, 2.2.4, 2.3.0dev-71e2ada881) when
compiled against proj-5.0.0/proj-5.0.1

The dataset is a GeoTIFF with EPSG:25832, and I get

Corner Coordinates:
ERROR 1: illegal axis orientation combination
Upper Left  (  375000.000, 5631000.000)
ERROR 1: illegal axis orientation combination
Lower Left  (  375000.000, 5628000.000)
ERROR 1: illegal axis orientation combination
Upper Right (  379000.000, 5631000.000)
ERROR 1: illegal axis orientation combination
Lower Right (  379000.000, 5628000.000)
ERROR 1: illegal axis orientation combination
Center      (  377000.000, 5629500.000)
Segmentation fault (core dumped)

The error message is printed by GDAL and comes from PROJ. I think the
segfault is a symptom of the error, therefore I would like to find out the
reason of the error.

Using gdal-2.2+ with proj-4.9.3, all is fine.

Testing proj-5.0.1 with

cs2cs +proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m
+no_defs +to +proj=latlong +ellps=GRS80

proj -I +proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m
+no_defs

cct +proj=pipeline +step +inv +proj=utm +zone=32 +ellps=GRS80
+towgs84=0,0,0,0,0,0,0 +units=m +no_defs

all is fine, too.

Is this a bug in (the old API still available with) proj-5.0.x or a bug in
gdal-2.2+?
Any hints where and how to dig deeper?

Markus M
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