From: rkingrum@...
Date: 2015-07-30T20:00:35+00:00
Subject: [ruby-core:70193] [Ruby trunk - Bug #11408] [Open] Segmentation fault with SCrypt and Ruby 2.2.2p95

Issue #11408 has been reported by Robert Ingrum.

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Bug #11408: Segmentation fault with SCrypt and Ruby 2.2.2p95
https://bugs.ruby-lang.org/issues/11408

* Author: Robert Ingrum
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.2.2p95 (2015-04-13 revision 50295) [i386-mingw32]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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I'm working on using SCrypt to generate a password salt and hash, but while generating the salt I get a segmentation fault.

My local code (fails on line 1):

     password_salt = SCrypt::Engine.generate_salt
     password_hash = SCrypt::Engine.hash_secret(password, password_salt)

The offending lines in SCrypt's library (fails on line 5):

    def self.__sc_calibrate(max_mem, max_memfrac, max_time)
      result = nil

      calibration = Calibration.new
      retval = SCrypt::Ext.sc_calibrate(max_mem, max_memfrac, max_time, calibration)

      if retval == 0
        result = [calibration[:n], calibration[:r], calibration[:p]]
      else
        raise "calibration error #{result}"
      end

      result
    end

I've attached the debug info.

---Files--------------------------------
segfault.txt (97.1 KB)


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