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[Octave-bug-tracker] [bug #43382] Fix double free in zfstream.cc


From: John W. Eaton
Subject: [Octave-bug-tracker] [bug #43382] Fix double free in zfstream.cc
Date: Wed, 08 Oct 2014 18:21:48 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.0

Follow-up Comment #1, bug #43382 (project octave):

I don't see how the buffer can be freed twice.  The call to delete only
happens if buffer is non-zero, and after calling delete[] on buffer, buffer is
set to 0.  Also, calling delete[] on 0 doesn't actually do anything, does it? 
Am I missing something?

If I am missing something and this actually does cause a segfault or double
free to occur, can you please provide a test case for that?

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