[Octave-bug-tracker] [bug #47372] Memory leaks and segmentation faults in Octave

[John W. Eaton]

Follow-up Comment #26, bug #47372 (project octave):

I ran "make check" again in my address-sanitizer build and I'm not seeing the
crash in the QR tests now.  That's without the patch.

The static nil_rep should be OK because shlib_rep's constructor sets count to
1.  So when the static object is first created it has a count of 1.  Then it
is incremented in the constructor.  So the count should never go to zero
unless an octave_shlib object that is created this way is somehow deleted more
than once.  Is that possibly happening?  The path I see that could allow that
is something like


  octave_shlib *ptr = new octave_shlib;
  ...
  delete ptr;
  delete ptr;



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