[tor-bugs] #10599 [Tor bundles/installation]: Investigate building TBB with SoftBound or AddressSanitizer

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon May 26 19:42:26 UTC 2014


#10599: Investigate building TBB with SoftBound or AddressSanitizer
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     Reporter:  mikeperry                 |      Owner:  erinn
         Type:  enhancement               |     Status:  new
     Priority:  major                     |  Milestone:
    Component:  Tor bundles/installation  |    Version:
   Resolution:                            |   Keywords:  gitian, tbb-
Actual Points:                            |  security
       Points:                            |  Parent ID:
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Comment (by mikeperry):

 Ok, I was able to get symbols for that stacktrace in comment:11 by
 removing the full path to all of the .so files, and then piping it to
 'asan_symbolize.py -d' while inside the Debug/Browser directory of the
 detached debug symbols. asan_symbolize.py is here: https://llvm.org/svn
 /llvm-project/compiler-rt/trunk/lib/asan/scripts/asan_symbolize.py. In my
 case, it just used addr2line, since I do not have llvm-symbolize.

 It looks like an issue with a dangling image cache pointer. I think I was
 asking for trouble by claiming this would be easy to diagnose. The image
 cache is a nightmare. Who knows how that pointer got into that state. I
 wonder if the FF24.5.0ESR crash is the same stacktrace?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10599#comment:25>
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