#923: Memory leak in GEOSNode
-------------------------+--------------------------
Reporter: Algunenano | Owner: geos-devel@…
Type: defect | Status: new
Priority: major | Milestone: 3.7.0
Component: Default | Version: master
Severity: Significant | Keywords:
-------------------------+--------------------------
Small repro test: `geos_leak.c` (attached)
Leak (full log in `leak_summary.log`):
{{{
$ clang -fsanitize=address geos_leak.c -lgeos_c -L/usr/lib
-I/usr/include/geos
$ ./a.out
=================================================================
==15579==ERROR: LeakSanitizer: detected memory leaks
Indirect leak of 88 byte(s) in 1 object(s) allocated from:
#0 0x563c03fb26a1 in __interceptor_malloc
(/home/raul/dev/public/postgis/a.out+0xe66a1)
#1 0x7fdddba9e5fc in operator new(unsigned long)
/build/gcc/src/gcc/libstdc++-v3/libsupc++/new_op.cc:50:40
#2 0x7fdddbcaa3e2 in
geos::noding::GeometryNoder::extractSegmentStrings(geos::geom::Geometry
const&, std::vector<geos::noding::SegmentString*,
std::allocator<geos::noding::SegmentString*> >&)
/usr/src/debug/geos/src/noding/GeometryNoder.cpp:157:12
#3 0x7fdddbcaa88b in geos::noding::GeometryNoder::getNoded()
/usr/src/debug/geos/src/noding/GeometryNoder.cpp:123:24
#4 0x7fdddbcaaa55 in
geos::noding::GeometryNoder::node(geos::geom::Geometry const&)
/usr/src/debug/geos/src/noding/GeometryNoder.cpp:80:25
#5 0x7fdddc10f497 in GEOSNode_r
/usr/src/debug/geos/capi/geos_ts_c.cpp:2450:76
#6 0x563c03fe6a75 in main
(/home/raul/dev/public/postgis/a.out+0x11aa75)
#7 0x7fdddbd7f222 in __libc_start_main (/usr/lib/libc.so.6+0x24222)
...
SUMMARY: AddressSanitizer: 360 byte(s) leaked in 8 allocation(s).
}}}
The issue wasn't there in rc1 (`geos-git-3.7.0rc1.r9.g1be02b36` building
from git) but it is there with current master/HEAD (`geos-
git-3.7.0rc1.r21.gbe8b3ffb`).
--
Ticket URL: <https://trac.osgeo.org/geos/ticket/923>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite
(JTS).
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