[Libreoffice-bugs] [Bug 116586] New: Crash with Hungarian spell checker in 6.0 debug build

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=116586

            Bug ID: 116586
           Summary: Crash with Hungarian spell checker in 6.0 debug build
           Product: LibreOffice
           Version: 6.0.3.1 rc
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Keywords: haveBacktrace
          Severity: major
          Priority: medium
         Component: Linguistic
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: baron at caesar.elte.hu
                CC: nemeth at numbertext.org
            Blocks: 96000, 105537

Created attachment 140828
  --> https://bugs.documentfoundation.org/attachment.cgi?id=140828&action=edit
Backtrace

Prerequisite:
With a debug build of libreoffice-6-0 branch (I was at
90fb652ebbc4b16ae5001140076f52209e913345), have Hungarian spell checker
installed (ie. hunspell-hu in Ubuntu), or copy the content of 'hu_HU' from
dictionaries repo into 'instdir/share/extensions/dict-hu'.
I assume debug libstdc++ packages are also needed.

Repro:
Open a Hungarian document eg. 'sw/qa/extras/uiwriter/data/commented-word.odt',
or set document language to Hungarian, and start typing.

=> Crash.
(the menioned document is for a unit test, so if Hungarian spell checker is
installed, the respective unit test will fail)

The crash is in Hunspell (or rather in C++ STD library), this is the relevant
part of the backtrace (attaching the whole thing):

#2  0x00007ffff6a564e3 in __gnu_debug::_Error_formatter::_M_error() const () at
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3  0x00007fffbf28f9a4 in std::binary_search<unsigned short*, unsigned
short>(unsigned short*, unsigned short*, unsigned short const&)
(__first=0x555557420e00, __last=0x555557420e2c, __val=@0x55555741a9dc: 119) at
/usr/include/c++/7/bits/stl_algo.h:2254
#4  0x00007fffbf2e92c2 in
HashMgr::remove_forbidden_flag(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&) (this=0x55555741a9c0,
word="élethalálharc") at hashmgr.cxx:509

There's also this message on the console:
/usr/include/c++/7/bits/stl_algo.h:2254:
Error: elements in iterator range [__first, __last) are not partitioned by 
the value __val.


There is no crash in a debug master build, so I have to close this as
WORKSFORME right away.
László, is there a chance you could investigate what is wrong here?


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=96000
[Bug 96000] [META] Spelling and grammar checking bugs and enhancements
https://bugs.documentfoundation.org/show_bug.cgi?id=105537
[Bug 105537] [META] Assertion failed crashes
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