[Bug libc/17048] posix_spawn_file_actions_addopen fails to copy the path argument

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https://sourceware.org/bugzilla/show_bug.cgi?id=17048

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=89e435f3559c53084498e9baad22172b64429362

commit 89e435f3559c53084498e9baad22172b64429362
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Jun 11 23:12:52 2014 +0200

    posix_spawn_file_actions_addopen needs to copy the path argument (BZ 17048)

    POSIX requires that we make a copy, so we allocate a new string
    and free it in posix_spawn_file_actions_destroy.

    Reported by David Reid, Alex Gaynor, and Glyph Lefkowitz.  This bug
    may have security implications.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                     |   13 +++++++++++++
 NEWS                          |    2 +-
 posix/spawn_faction_addopen.c |   13 ++++++++++---
 posix/spawn_faction_destroy.c |   22 ++++++++++++++++++++--
 posix/spawn_int.h             |    2 +-
 posix/tst-spawn.c             |   10 +++++++++-
 6 files changed, 54 insertions(+), 8 deletions(-)

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