[Bug 197376] lang/python27: random module leaks file descriptor into child process

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Fri Feb 6 16:35:46 UTC 2015


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197376

            Bug ID: 197376
           Summary: lang/python27: random module leaks file descriptor
                    into child process
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: python at FreeBSD.org
          Reporter: emaste at freebsd.org
             Flags: maintainer-feedback?(python at FreeBSD.org)
          Assignee: python at FreeBSD.org

Created attachment 152624
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=152624&action=edit
leaked fd test program from LLDB test suite

Version: python27-2.7.9

LLDB recently added a test that the debugger is not leaking file descriptors
into child processes. This fails on FreeBSD, and the leaked fd comes from
Python's random. I've attached the test program from LLDB.

To reproduce:

- Build test program and confirm it returns 0:
% clang main.c && ./a.out
% echo $?
0

- Invoke it from python without using random and confirm it returns 0:
>>> import os
>>> os.system("./a.out")
0

- Invoke it from python with random:

>>> import os, random
>>> os.system("./a.out")
File descriptor 4 is open.
512

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