Git versions of glib, goffice, gnumeric, libgsf and libxml2.

Test case: http://jutaky.com/fuzzing/gnumeric_case_7948_12371.ods

$ ssconvert gnumeric_case_7948_12371.ods /tmp/out.gnumeric

==13772==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f7eddf06d79 bp 0x7ffe33845930 sp 0x7ffe338457e0 T0)
    #0 0x7f7eddf06d78 in go_styled_object_get_style gnumeric/goffice/goffice/utils/go-styled-object.c:129:31
    #1 0x7f7eb8eb8a7b in od_series_reg_equation gnumeric/gnumeric/plugins/openoffice/openoffice-read.c:9544:4
    #2 0x7f7edcb72395 in push_child gnumeric/libgsf/gsf/gsf-libxml.c:658:3
    #3 0x7f7edcb8b21d in lookup_child gnumeric/libgsf/gsf/gsf-libxml.c:694:5
    #4 0x7f7edcb86240 in gsf_xml_in_start_element gnumeric/libgsf/gsf/gsf-libxml.c:786:7
    #5 0x7f7edbb4eb60 in xmlParseStartTag__internal_alias gnumeric/libxml2/parser.c:8676:6
    #6 0x7f7edbb5a71f in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10080:9
    #7 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #8 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #9 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #10 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #11 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #12 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #13 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #14 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #15 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #16 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #17 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #18 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #19 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #20 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #21 0x7f7edbb81684 in xmlParseDocument__internal_alias gnumeric/libxml2/parser.c:10849:2
    #22 0x7f7edcb72aa3 in gsf_xml_in_doc_parse gnumeric/libgsf/gsf/gsf-libxml.c:1338:2
    #23 0x7f7eb8eedb65 in od_draw_object gnumeric/gnumeric/plugins/openoffice/openoffice-read.c:8343:3
    #24 0x7f7edcb72395 in push_child gnumeric/libgsf/gsf/gsf-libxml.c:658:3
    #25 0x7f7edcb8b21d in lookup_child gnumeric/libgsf/gsf/gsf-libxml.c:694:5
    #26 0x7f7edcb86240 in gsf_xml_in_start_element gnumeric/libgsf/gsf/gsf-libxml.c:786:7
    #27 0x7f7edbb4eb60 in xmlParseStartTag__internal_alias gnumeric/libxml2/parser.c:8676:6
    #28 0x7f7edbb5a71f in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10080:9
    #29 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #30 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #31 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #32 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #33 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #34 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #35 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #36 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #37 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #38 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #39 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #40 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #41 0x7f7edbb58bd3 in xmlParseContent__internal_alias gnumeric/libxml2/parser.c:9990:6
    #42 0x7f7edbb5d039 in xmlParseElement__internal_alias gnumeric/libxml2/parser.c:10163:5
    #43 0x7f7edbb81684 in xmlParseDocument__internal_alias gnumeric/libxml2/parser.c:10849:2
    #44 0x7f7edcb72aa3 in gsf_xml_in_doc_parse gnumeric/libgsf/gsf/gsf-libxml.c:1338:2
    #45 0x7f7eb8e69c70 in openoffice_file_open gnumeric/gnumeric/plugins/openoffice/openoffice-read.c:13950:24
    #46 0x7f7edd744c80 in go_plugin_loader_module_func_file_open gnumeric/goffice/goffice/app/go-plugin-loader-module.c:282:3
    #47 0x7f7edd758804 in go_plugin_file_opener_open gnumeric/goffice/goffice/app/go-plugin-service.c:685:2
    #48 0x7f7edd766018 in go_file_opener_open gnumeric/goffice/goffice/app/file.c:417:2
    #49 0x7f7edf0ecf2a in workbook_view_new_from_input gnumeric/gnumeric/src/workbook-view.c:1278:3
    #50 0x7f7edf0edb20 in workbook_view_new_from_uri gnumeric/gnumeric/src/workbook-view.c:1337:9
    #51 0x4e0dc1 in convert gnumeric/gnumeric/src/ssconvert.c:719:9
    #52 0x4dec1e in main gnumeric/gnumeric/src/ssconvert.c:910:9
    #53 0x7f7ed7b7d78f in __libc_start_main (/usr/lib/libc.so.6+0x2078f)
    #54 0x437ae8 in _start (apps/bin/ssconvert+0x437ae8)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV gnumeric/goffice/goffice/utils/go-styled-object.c:129 go_styled_object_get_style

--
Juha Kylmänen