Re: [Boost-bugs] [Boost C++ Libraries] #12871: boost::posix_time::operator<< results in heap corruption

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12871: boost::posix_time::operator<< results in heap corruption
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-02-26 05:57:45

#12871: boost::posix_time::operator<< results in heap corruption
-------------------------------+-------------------------
  Reporter:  nmmreddy11@…      |      Owner:  az_sw_dude
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  date_time
   Version:  Boost 1.59.0      |   Severity:  Showstopper
Resolution:                    |   Keywords:
-------------------------------+-------------------------

Comment (by nmmreddy11@…):

 I see a similar incident reported 8 years ago.
 https://svn.boost.org/trac/boost/ticket/3369


 '''
 Issue:'''

 posix_time::operator<< crashes with double free under possible race
 conditions
 #13 0x08070aca in boost::posix_time::operator<< <char,
 std::char_traits<char> > (os=@0x80def94,p=@0x40bb32c8) at
 posix_time_io.hpp:53


 '''Reply:'''

 Is the streaming expression protected with a mutex lock or a similar
 synchronization mechanism? If not, that is the most probable source of the
 problem.


 '''Closure comments:'''

 We haven't seen this issue reappear, so perhaps it was a temporary lapse
 in synchronization after all. Can be closed.

 '''What should I do?'''

 Am I supposed to synchronize function calls to data time library?
 posix_time is not thread safe?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12871#comment:1>
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