[postgis-tickets] [PostGIS] #4534: lwcircstring direct leak in wkb parser

[PostGIS]

#4534: lwcircstring direct leak in wkb parser
---------------------+---------------------------
 Reporter:  komzpa   |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 3.0.1
Component:  postgis  |    Version:  2.5.x
 Keywords:           |
---------------------+---------------------------
 {{{
 =================================================================
 ==1==ERROR: LeakSanitizer: detected memory leaks
 Direct leak of 72 byte(s) in 3 object(s) allocated from:
     #0 0x49692d in malloc /src/llvm/projects/compiler-
 rt/lib/asan/asan_malloc_linux.cpp:145:3
     #1 0x6616cb in ptarray_construct_empty
 /src/postgis/liblwgeom/ptarray.c:61:19
     #2 0x66165e in ptarray_construct
 /src/postgis/liblwgeom/ptarray.c:53:19
     #3 0x611060 in lwcircstring_from_wkb_state
 /src/postgis/liblwgeom/lwin_wkb.c:479:19
     #4 0x611a7b in lwcurvepoly_from_wkb_state
 /src/postgis/liblwgeom/lwin_wkb.c:619:10
     #5 0x611eda in lwgeom_from_wkb /src/postgis/liblwgeom/lwin_wkb.c:783:9
     #6 0x4c9d2d in LLVMFuzzerTestOneInput
 /src/postgis/fuzzers/wkb_import_fuzzer.cpp:116:22
     #7 0x51a546 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*,
 unsigned long) /src/libfuzzer/FuzzerLoop.cpp:556:15
     #8 0x4cb08f in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*,
 unsigned long) /src/libfuzzer/FuzzerDriver.cpp:292:6
     #9 0x4d8cf2 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned
 char const*, unsigned long)) /src/libfuzzer/FuzzerDriver.cpp:774:9
     #10 0x4ca6d7 in main /src/libfuzzer/FuzzerMain.cpp:19:10
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4534>
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