[Bug translator/4066] hist_linear() with large H value crashes system

[joshua dot i dot stone at intel dot com]

------- Additional Comments From joshua dot i dot stone at intel dot com  2007-02-16 22:41 -------
(In reply to comment #0)
> I suspect there's a problem in _stp_stat_init().

The problem is we're not checking the return value.  The initialization code for
"reads" goes:

  global_reads = _stp_stat_init (HIST_LINEAR, 0, 300000000000, 50);
  if (rc) {
    _stp_error ("global variable reads allocation failed");
    goto out;
  }
  rwlock_init (& global_reads_lock);

_stp_stat_init returns NULL if a problem occurs, but the caller is only checking
'rc', which is untouched.



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http://sourceware.org/bugzilla/show_bug.cgi?id=4066

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