[Bug dynamic-link/13579] do_lookup_x may access dangling memory

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13579

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1ba48eb07a72690406c0ffda642a963c88639752

commit 1ba48eb07a72690406c0ffda642a963c88639752
Author: Andreas Schwab <schwab@redhat.com>
Date:   Fri Jun 22 11:10:31 2012 -0700

    Fix invalid memory access in do_lookup_x.

    [BZ #13579] Do not free l_initfini and allow it to be reused
    on subsequent dl_open calls for the same library. This fixes
    the invalid memory access in do_lookup_x when the previously
    free'd l_initfini was accessed through l_searchlist when a
    library had been opened for the second time.

    (cherry picked from commit 0479b305c5b7c8e3fa8e3002982cf8cac02b842e)

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

Summary of changes:
 ChangeLog      |   11 +++++++++++
 NEWS           |    3 ++-
 elf/dl-close.c |   15 +++------------
 elf/dl-deps.c  |    7 ++++---
 elf/dl-libc.c  |    9 ++++++---
 elf/rtld.c     |    2 ++
 include/link.h |    8 ++++----
 7 files changed, 32 insertions(+), 23 deletions(-)

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