bugGNU Octave - Bugs: bug #55397, test imwrite error with address...

 
 

bug #55397: test imwrite error with address sanitizer

Submitter:  Dmitri A. Sergatskov <dasergatskov>
Submitted:  Sat 05 Jan 2019 06:25:43 PM UTC
 
Category:  Test Suite Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Segfault, Bus Error, etc.
Status:  Works For Me Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * 5.0.1 Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Sat 19 Jan 2019 12:22:40 AM UTC, comment #14: 

Thanks.  I'm pretty sure this is an upstream bug at this point.  ASAN identifies the leak in Magick library when the exception about a bad format is attempted to be thrown

    #1 0x7f74a3edd7b0 in GetLocaleExceptionMessage (/lib64/libGraphicsMagick-Q16.so.3+0xa97b0)

Rik <rik5>
Project Administrator
Fri 18 Jan 2019 11:32:33 PM UTC, comment #13: 

Do not see any change:

octave:1> imwrite (1, "filename", "junk")
warning: imwrite: unlisted image format junk (see imformats).  Trying to save anyway.
warning: called from
    imwrite at line 115 column 5
=================================================================
==29911==ERROR: AddressSanitizer: heap-use-after-free on address 0x6250000399f8 at pc 0x7f74a87db2dd bp 0x7ffc45c8bbe0 sp 0x7ffc45c8b388
READ of size 5 at 0x6250000399f8 thread T0
    #0 0x7f74a87db2dc  (/lib64/libasan.so.5+0xa22dc)
    #1 0x7f74a3edd7b0 in GetLocaleExceptionMessage (/lib64/libGraphicsMagick-Q16.so.3+0xa97b0)
    #2 0x7f74a3eddc9e in ThrowLoggedException (/lib64/libGraphicsMagick-Q16.so.3+0xa9c9e)
    #3 0x7f74a3ec2103 in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e103)
    #4 0x7f74a3ec235a in WriteImages (/lib64/libGraphicsMagick-Q16.so.3+0x8e35a)
    #5 0x7f74a7551829 in void Magick::writeImages<__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > > >(__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, __gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (/home/dima/src/octave/gcc_asan/libinterp/.libs/liboctinterp.so.6+0x1829829)
    #6 0x7f74a752830a in write_file ../libinterp/corefcn/__magick_read__.cc:1446
    #7 0x7f74a752ae89 in F__magick_write__(octave_value_list const&, int) ../libinterp/corefcn/__magick_read__.cc:1632
    #8 0x7f74a6ff4984 in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:65
    #9 0x7f74a7463ee2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2008
    #10 0x7f74a749f428 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
<<<...>>>

Here is what I did to

../libinterp/corefcn/__magick_read__.cc

void static
write_file (const std::string& filename,
            const std::string& ext,
            std::vector<Magick::Image>& imvec)
{
  //try
    {
      Magick::writeImages (imvec.begin (), imvec.end (), ext + ':' + filename);
    }
  /*catch (Magick::Warning& w)
    {
      warning ("Magick++ warning: %s", w.what ());
    }
  catch (Magick::ErrorCoder& e)
    {
      warning ("Magick++ coder error: %s", e.what ());
    }
  catch (Magick::Exception& e)
    {
      error ("Magick++ exception: %s", e.what ());
    }
    */
}

Dmitri A. Sergatskov <dasergatskov>
Fri 18 Jan 2019 10:42:12 PM UTC, comment #12: 

I think the problem may be the exception handling.  The code in _magick_read_.cc is

void static
write_file (const std::string& filename,
            const std::string& ext,
            std::vector<Magick::Image>& imvec)
{
  try
    {
      Magick::writeImages (imvec.begin (), imvec.end (), ext + ':' + filename);
    }
  catch (Magick::Warning& w)
    {
      warning ("Magick++ warning: %s", w.what ());
    }
  catch (Magick::ErrorCoder& e)
    {
      warning ("Magick++ coder error: %s", e.what ());
    }
  catch (Magick::Exception& e)
    {
      error ("Magick++ exception: %s", e.what ());
    }
}

@Dmitri: Could you try commenting out all of the catch blocks, re-compiling, and then testing with

imwrite (1, "filename", "junk")

Rik <rik5>
Project Administrator
Tue 08 Jan 2019 06:06:04 AM UTC, comment #11: 

Still the same. Do not see any change.

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Tue 08 Jan 2019 12:38:42 AM UTC, comment #10: 

I doubt it will fix the issue, but I just checked in a fix for a static analyzer detected issue with _magick_read_.cc which might be relevant (https://hg.savannah.gnu.org/hgweb/octave/rev/72e0a106d956).

Rik <rik5>
Project Administrator
Mon 07 Jan 2019 02:17:52 AM UTC, comment #9: 

I tried to compile with ASAN convert.c example program
http://www.graphicsmagick.org/api/api.html

and I do not see any problem with it.
So perhaps it is still octave problem...

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Mon 07 Jan 2019 01:48:45 AM UTC, comment #8: 

Might be due to:

http://www.graphicsmagick.org/Changelog.html

2018-11-22 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>

magick/constitute.c (WriteImage): Eliminate use of just-freed memory in clone_info->magick when throwing exception due to no support for format. Fixes SourceForge issue #576 "heap use-after-freee when convert one format into another format".

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Mon 07 Jan 2019 01:41:32 AM UTC, comment #7: 

So 1.3.30 is also OK but 1.3.31 crashes.

Dmitri.

Dmitri A. Sergatskov <dasergatskov>
Mon 07 Jan 2019 01:36:14 AM UTC, comment #6: 

I downgraded to 1.3.28 and the problem gone away.

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Mon 07 Jan 2019 01:28:36 AM UTC, comment #5: 

I also have GraphicsMagick, and I checked the config log and I am using it over ImageMagick.

libgraphicsmagick++1-dev                        1.3.28-2

Rik <rik5>
Project Administrator
Sun 06 Jan 2019 09:40:29 PM UTC, comment #4: 

So you are using ImageMagick I thought we preferred GraphicsMagick
(I am using GraphicsMagick-1.3.31-2.fc29.x86_64).

But it does appear to be a bug in GraphicsMagick; it cannot handle
wrong input...

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sun 06 Jan 2019 09:05:02 PM UTC, comment #3: 

This works for me.  I get

octave:1>  imwrite (1, "filename", "junk")
warning: imwrite: unlisted image format junk (see imformats).  Trying to save anyway.
warning: called from
    imwrite at line 115 column 5
error: Magick++ exception: Magick: No encode delegate for this image format (filename) reported by magick/constitute.c:2283 (WriteImage)
error: called from
    __imwrite__ at line 215 column 3
    imwrite at line 117 column 5

This is with

libmagick++-6.q16-7:amd64                       8:6.9.7.4+dfsg-16ubuntu6.4

Rik <rik5>
Project Administrator
Sun 06 Jan 2019 07:26:05 PM UTC, comment #2: 

The test that causing ASAN to crash is
imwrite (1, "filename", "junk"):


octave:1> imwrite (1, "filename", "junk")
warning: imwrite: unlisted image format junk (see imformats).  Trying to save anyway.
warning: called from
    imwrite at line 115 column 5
=================================================================
==3451==ERROR: AddressSanitizer: heap-use-after-free on address 0x6250000411f8 at pc 0x7fd9726ca2dd bp 0x7ffc47c73d80 sp 0x7ffc47c73528
READ of size 5 at 0x6250000411f8 thread T0
    #0 0x7fd9726ca2dc  (/lib64/libasan.so.5+0xa22dc)
    #1 0x7fd96ddcf7b0 in GetLocaleExceptionMessage (/lib64/libGraphicsMagick-Q16.so.3+0xa97b0)
    #2 0x7fd96ddcfc9e in ThrowLoggedException (/lib64/libGraphicsMagick-Q16.so.3+0xa9c9e)
    #3 0x7fd96ddb4103 in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e103)
    #4 0x7fd96ddb435a in WriteImages (/lib64/libGraphicsMagick-Q16.so.3+0x8e35a)
    #5 0x7fd971442301 in void Magick::writeImages<__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > > >(__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, __gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (/home/dima/src/octave/gcc_asan_min/libinterp/.libs/liboctinterp.so.6+0x1828301)
    #6 0x7fd971418bb7 in write_file ../libinterp/corefcn/__magick_read__.cc:1446
    #7 0x7fd97141b960 in F__magick_write__(octave_value_list const&, int) ../libinterp/corefcn/__magick_read__.cc:1631
    #8 0x7fd970ee4a30 in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:6
<<<etc... >>>>

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sat 05 Jan 2019 06:41:11 PM UTC, comment #1: 

Here is the same test with a minimal octave (no qt, no java):

test image/imwrite.m
[Detaching after fork from child process 27877]
[Detaching after fork from child process 27878]
warning: Loadable section ".note.gnu.property" outside of ELF segments
warning: Loadable section ".note.gnu.property" outside of ELF segments
[Detaching after fork from child process 27879]
=================================================================
==27830==ERROR: AddressSanitizer: heap-use-after-free on address 0x62500003e9f8 at pc 0x7ffff72792dd bp 0x7ffffffed1a0 sp 0x7ffffffec948
READ of size 5 at 0x62500003e9f8 thread T0
    #0 0x7ffff72792dc  (/lib64/libasan.so.5+0xa22dc)
    #1 0x7ffff297e7b0 in GetLocaleExceptionMessage (/lib64/libGraphicsMagick-Q16.so.3+0xa97b0)
    #2 0x7ffff297ec9e in ThrowLoggedException (/lib64/libGraphicsMagick-Q16.so.3+0xa9c9e)
    #3 0x7ffff2963103 in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e103)
    #4 0x7ffff296335a in WriteImages (/lib64/libGraphicsMagick-Q16.so.3+0x8e35a)
    #5 0x7ffff5ff1301 in void Magick::writeImages<__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > > >(__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, __gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (/home/dima/src/octave/gcc_asan_min/libinterp/.libs/liboctinterp.so.6+0x1828301)
    #6 0x7ffff5fc7bb7 in write_file ../libinterp/corefcn/__magick_read__.cc:1446
    #7 0x7ffff5fca960 in F__magick_write__(octave_value_list const&, int) ../libinterp/corefcn/__magick_read__.cc:1631
    #8 0x7ffff5a93a30 in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:65
    #9 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #10 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #11 0x7ffff5b67641 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #12 0x7ffff5f0bb1b in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #13 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #14 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #15 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #16 0x7ffff5f008e0 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #17 0x7ffff5ce782e in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #18 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #19 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #20 0x7ffff5b67641 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #21 0x7ffff5f0bb1b in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #22 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #23 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #24 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #25 0x7ffff5f02997 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #26 0x7ffff5ee55ce in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #27 0x7ffff5f025a9 in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #28 0x7ffff5f532ae in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #29 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #30 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #31 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #32 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #33 0x7ffff5f008e0 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #34 0x7ffff5ce782e in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #35 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #36 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #37 0x7ffff5b67641 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #38 0x7ffff5f0bb1b in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #39 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #40 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #41 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #42 0x7ffff5f008e0 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #43 0x7ffff5ce782e in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #44 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #45 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #46 0x7ffff5f1be0d in octave::tree_evaluator::evaluate_n(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:343
    #47 0x7ffff5ef27d6 in octave::tree_evaluator::eval_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, int&, int) ../libinterp/parse-tree/pt-eval.cc:242
    #48 0x7ffff5ef2ffe in octave::tree_evaluator::eval_string(octave_value const&, bool, int&, int) ../libinterp/parse-tree/pt-eval.cc:286
    #49 0x7ffff66edc37 in octave::interpreter::eval_string(octave_value const&, bool, int&, int) ../libinterp/corefcn/interpreter.cc:1150
    #50 0x7ffff5e9c5fc in Feval(octave::interpreter&, octave_value_list const&, int) ../libinterp/parse-tree/oct-parse.yy:5485
    #51 0x7ffff5a93c1b in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:71
    #52 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #53 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #54 0x7ffff5b67641 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #55 0x7ffff5f0bb1b in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #56 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #57 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #58 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #59 0x7ffff5f0cf27 in octave::tree_evaluator::visit_try_catch_command(octave::tree_try_catch_command&) ../libinterp/parse-tree/pt-eval.cc:2961
    #60 0x7ffff5f36a00 in octave::tree_try_catch_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-except.h:81
    #61 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #62 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #63 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #64 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #65 0x7ffff5f02997 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #66 0x7ffff5ee55ce in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #67 0x7ffff5f025a9 in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #68 0x7ffff5f532ae in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #69 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #70 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #71 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #72 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #73 0x7ffff5f02997 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #74 0x7ffff5ee55ce in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #75 0x7ffff5f025a9 in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #76 0x7ffff5f532ae in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #77 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #78 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #79 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #80 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #81 0x7ffff5f0e2c2 in octave::tree_evaluator::visit_unwind_protect_command(octave::tree_unwind_protect_command&) ../libinterp/parse-tree/pt-eval.cc:3100
    #82 0x7ffff5f36a74 in octave::tree_unwind_protect_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-except.h:148
    #83 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #84 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #85 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #86 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #87 0x7ffff5efce6d in octave::tree_evaluator::visit_simple_for_command(octave::tree_simple_for_command&) ../libinterp/parse-tree/pt-eval.cc:1295
    #88 0x7ffff5f46b9e in octave::tree_simple_for_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-loop.h:219
    #89 0x7ffff5f0b946 in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #90 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #91 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #92 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #93 0x7ffff5f008e0 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #94 0x7ffff5ce782e in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #95 0x7ffff5f0379e in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #96 0x7ffff5f3ece4 in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #97 0x7ffff5b67641 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #98 0x7ffff5f0bb1b in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #99 0x7ffff5f56566 in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #100 0x7ffff5f0c1fc in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #101 0x7ffff5b6826c in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #102 0x7ffff5ef19ef in octave::tree_evaluator::repl(bool) ../libinterp/parse-tree/pt-eval.cc:105
    #103 0x7ffff66ea724 in octave::interpreter::main_loop() ../libinterp/corefcn/interpreter.cc:949
    #104 0x7ffff66e77c7 in octave::interpreter::execute() ../libinterp/corefcn/interpreter.cc:694
    #105 0x7ffff50245fe in octave::cli_application::execute() ../libinterp/octave.cc:391
    #106 0x402954 in main ../src/main-cli.cc:92
    #107 0x7fffeefe8412 in __libc_start_main (/lib64/libc.so.6+0x24412)
    #108 0x4022ad in _start (/home/dima/src/octave/gcc_asan_min/src/.libs/lt-octave-cli+0x4022ad)

0x62500003e9f8 is located 248 bytes inside of 8536-byte region [0x62500003e900,0x625000040a58)
freed by thread T0 here:
    #0 0x7ffff72c6480 in free (/lib64/libasan.so.5+0xef480)
    #1 0x7ffff29630cf in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e0cf)

previously allocated by thread T0 here:
    #0 0x7ffff72c6848 in __interceptor_malloc (/lib64/libasan.so.5+0xef848)
    #1 0x7ffff2990096 in CloneImageInfo (/lib64/libGraphicsMagick-Q16.so.3+0xbb096)

SUMMARY: AddressSanitizer: heap-use-after-free (/lib64/libasan.so.5+0xa22dc)
Shadow bytes around the buggy address:
  0x0c4a7ffffce0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a7ffffcf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a7ffffd00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a7ffffd10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a7ffffd20: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c4a7ffffd30: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]
  0x0c4a7ffffd40: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a7ffffd50: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a7ffffd60: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a7ffffd70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a7ffffd80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==27830==ABORTING

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sat 05 Jan 2019 06:25:43 PM UTC, original submission:  

After compiling aced09cc1721 (stable) tip (5.0.1) with address sanitizer flags. Running under gdb:

ASAN_OPTIONS=verbosity=0:leak_check_at_exit=0 ./run-octave -g -q -f


==21637==ERROR: AddressSanitizer: heap-use-after-free on address 0x6250001bd1f8 at pc 0x7ffff72792dd bp 0x7fffd2c256f0 sp 0x7fffd2c24e98
READ of size 5 at 0x6250001bd1f8 thread T7 (QThread)
    #0 0x7ffff72792dc  (/lib64/libasan.so.5+0xa22dc)
    #1 0x7ffff0b327b0 in GetLocaleExceptionMessage (/lib64/libGraphicsMagick-Q16.so.3+0xa97b0)
    #2 0x7ffff0b32c9e in ThrowLoggedException (/lib64/libGraphicsMagick-Q16.so.3+0xa9c9e)
    #3 0x7ffff0b17103 in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e103)
    #4 0x7ffff0b1735a in WriteImages (/lib64/libGraphicsMagick-Q16.so.3+0x8e35a)
    #5 0x7ffff58edfd9 in void Magick::writeImages<__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > > >(__gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, __gnu_cxx::__normal_iterator<Magick::Image*, std::vector<Magick::Image, std::allocator<Magick::Image> > >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (/home/dima/src/octave/gcc_asan/libinterp/.libs/liboctinterp.so.6+0x1858fd9)
    #6 0x7ffff58c488f in write_file ../libinterp/corefcn/__magick_read__.cc:1446
    #7 0x7ffff58c7638 in F__magick_write__(octave_value_list const&, int) ../libinterp/corefcn/__magick_read__.cc:1631
    #8 0x7ffff536a870 in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:65
    #9 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #10 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #11 0x7ffff543e481 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #12 0x7ffff5808e1f in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #13 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #14 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #15 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #16 0x7ffff57fdbe4 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #17 0x7ffff55e5e9a in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #18 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #19 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #20 0x7ffff543e481 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #21 0x7ffff5808e1f in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #22 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #23 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #24 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #25 0x7ffff57ffc9b in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #26 0x7ffff57e28d2 in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #27 0x7ffff57ff8ad in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #28 0x7ffff5850196 in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #29 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #30 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #31 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #32 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #33 0x7ffff57fdbe4 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #34 0x7ffff55e5e9a in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #35 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #36 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #37 0x7ffff543e481 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #38 0x7ffff5808e1f in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #39 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #40 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #41 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #42 0x7ffff57fdbe4 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #43 0x7ffff55e5e9a in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #44 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #45 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #46 0x7ffff5819081 in octave::tree_evaluator::evaluate_n(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:343
    #47 0x7ffff57efada in octave::tree_evaluator::eval_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, int&, int) ../libinterp/parse-tree/pt-eval.cc:242
    #48 0x7ffff57f0302 in octave::tree_evaluator::eval_string(octave_value const&, bool, int&, int) ../libinterp/parse-tree/pt-eval.cc:286
    #49 0x7ffff5fea019 in octave::interpreter::eval_string(octave_value const&, bool, int&, int) ../libinterp/corefcn/interpreter.cc:1150
    #50 0x7ffff5799fac in Feval(octave::interpreter&, octave_value_list const&, int) ../libinterp/parse-tree/oct-parse.yy:5485
    #51 0x7ffff536aa5b in octave_builtin::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-builtin.cc:71
    #52 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #53 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #54 0x7ffff543e481 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #55 0x7ffff5808e1f in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #56 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #57 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #58 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #59 0x7ffff580a22b in octave::tree_evaluator::visit_try_catch_command(octave::tree_try_catch_command&) ../libinterp/parse-tree/pt-eval.cc:2961
    #60 0x7ffff58338e8 in octave::tree_try_catch_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-except.h:81
    #61 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #62 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #63 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #64 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #65 0x7ffff57ffc9b in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #66 0x7ffff57e28d2 in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #67 0x7ffff57ff8ad in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #68 0x7ffff5850196 in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #69 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #70 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #71 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #72 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #73 0x7ffff57ffc9b in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) ../libinterp/parse-tree/pt-eval.cc:1862
    #74 0x7ffff57e28d2 in octave::tree_if_command_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:115
    #75 0x7ffff57ff8ad in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) ../libinterp/parse-tree/pt-eval.cc:1840
    #76 0x7ffff5850196 in octave::tree_if_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-select.h:148
    #77 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #78 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #79 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #80 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #81 0x7ffff580b5c6 in octave::tree_evaluator::visit_unwind_protect_command(octave::tree_unwind_protect_command&) ../libinterp/parse-tree/pt-eval.cc:3100
    #82 0x7ffff583395c in octave::tree_unwind_protect_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-except.h:148
    #83 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #84 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #85 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #86 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #87 0x7ffff57fa171 in octave::tree_evaluator::visit_simple_for_command(octave::tree_simple_for_command&) ../libinterp/parse-tree/pt-eval.cc:1295
    #88 0x7ffff5843a86 in octave::tree_simple_for_command::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-loop.h:219
    #89 0x7ffff5808c4a in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2753
    #90 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #91 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #92 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #93 0x7ffff57fdbe4 in octave::tree_evaluator::execute_user_function(octave_user_function&, int, octave_value_list const&) ../libinterp/parse-tree/pt-eval.cc:1694
    #94 0x7ffff55e5e9a in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) ../libinterp/octave-value/ov-usr-fcn.cc:455
    #95 0x7ffff5800aa2 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) ../libinterp/parse-tree/pt-eval.cc:2007
    #96 0x7ffff583bbcc in octave::tree_index_expression::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-idx.h:102
    #97 0x7ffff543e481 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) ../libinterp/parse-tree/pt-eval.h:312
    #98 0x7ffff5808e1f in octave::tree_evaluator::visit_statement(octave::tree_statement&) ../libinterp/parse-tree/pt-eval.cc:2775
    #99 0x7ffff585344e in octave::tree_statement::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:119
    #100 0x7ffff5809500 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) ../libinterp/parse-tree/pt-eval.cc:2844
    #101 0x7ffff543f0ac in octave::tree_statement_list::accept(octave::tree_walker&) ../libinterp/parse-tree/pt-stmt.h:194
    #102 0x7ffff57eecf3 in octave::tree_evaluator::repl(bool) ../libinterp/parse-tree/pt-eval.cc:105
    #103 0x7ffff5fe6b06 in octave::interpreter::main_loop() ../libinterp/corefcn/interpreter.cc:949
    #104 0x7ffff5fe3ba9 in octave::interpreter::execute() ../libinterp/corefcn/interpreter.cc:694
    #105 0x7ffff6daebb1 in octave::octave_interpreter::execute() ../libgui/src/main-window.cc:146
    #106 0x7ffff6f81405 in octave::octave_interpreter::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) libgui/src/moc-main-window.cc:89
    #107 0x7ffff2f920f5 in QObject::event(QEvent*) (/lib64/libQt5Core.so.5+0x27b0f5)
    #108 0x7ffff38e42a4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt5Widgets.so.5+0x16d2a4)
    #109 0x7ffff38eb9bf in QApplication::notify(QObject*, QEvent*) (/lib64/libQt5Widgets.so.5+0x1749bf)
    #110 0x7ffff6dda780 in octave::octave_qapplication::notify(QObject*, QEvent*) ../libgui/src/main-window.cc:2783
    #111 0x7ffff2f69235 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt5Core.so.5+0x252235)
    #112 0x7ffff2f6c40a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/lib64/libQt5Core.so.5+0x25540a)
    #113 0x7ffff2fb9a86  (/lib64/libQt5Core.so.5+0x2a2a86)
    #114 0x7fffeacd606c in g_main_context_dispatch (/lib64/libglib-2.0.so.0+0x4f06c)
    #115 0x7fffeacd6437  (/lib64/libglib-2.0.so.0+0x4f437)
    #116 0x7fffeacd64cf in g_main_context_iteration (/lib64/libglib-2.0.so.0+0x4f4cf)
    #117 0x7ffff2fb9812 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt5Core.so.5+0x2a2812)
    #118 0x7ffff2f6817a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt5Core.so.5+0x25117a)
    #119 0x7ffff2dd0045 in QThread::exec() (/lib64/libQt5Core.so.5+0xb9045)
    #120 0x7ffff2dd94ba  (/lib64/libQt5Core.so.5+0xc24ba)
    #121 0x7fffed34158d in start_thread (/lib64/libpthread.so.0+0x858d)
    #122 0x7fffed2706a2 in clone (/lib64/libc.so.6+0xfd6a2)

0x6250001bd1f8 is located 248 bytes inside of 8536-byte region [0x6250001bd100,0x6250001bf258)
freed by thread T7 (QThread) here:
    #0 0x7ffff72c6480 in free (/lib64/libasan.so.5+0xef480)
    #1 0x7ffff0b170cf in WriteImage (/lib64/libGraphicsMagick-Q16.so.3+0x8e0cf)

previously allocated by thread T7 (QThread) here:
    #0 0x7ffff72c6848 in __interceptor_malloc (/lib64/libasan.so.5+0xef848)
    #1 0x7ffff0b44096 in CloneImageInfo (/lib64/libGraphicsMagick-Q16.so.3+0xbb096)

Thread T7 (QThread) created by T0 here:
    #0 0x7ffff7223043 in __interceptor_pthread_create (/lib64/libasan.so.5+0x4c043)
    #1 0x7ffff2dd8f36 in QThread::start(QThread::Priority) (/lib64/libQt5Core.so.5+0xc1f36)

SUMMARY: AddressSanitizer: heap-use-after-free (/lib64/libasan.so.5+0xa22dc)
Shadow bytes around the buggy address:
  0x0c4a8002f9e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a8002f9f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a8002fa00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a8002fa10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c4a8002fa20: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c4a8002fa30: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]
  0x0c4a8002fa40: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a8002fa50: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a8002fa60: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a8002fa70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c4a8002fa80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==21637==ABORTING
[Thread 0x7fffd2082700 (LWP 21662) exited]
[Thread 0x7fffd2c35700 (LWP 21661) exited]
[Thread 0x7fffd4165700 (LWP 21658) exited]
[Thread 0x7fffd5193700 (LWP 21656) exited]
[Thread 0x7fffd599c700 (LWP 21655) exited]
[Thread 0x7fffd6fd5700 (LWP 21654) exited]
[Thread 0x7fffe7756a40 (LWP 21637) exited]
[Inferior 1 (process 21637) exited with code 01]

Perhaps it is false positive. Will retest w/o Qt.

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>

 

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    Date Changed by Updated Field Previous Value => Replaced by
    2019-01-19 rik5 Open/ClosedOpen Closed
    2019-01-06 rik5 StatusNone Works For Me

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