[Bug nptl/17135] setxid wrapper changes cause process aborts

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17135

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=771eb1415fde935e377111f69364a5d92a29e67d

commit 771eb1415fde935e377111f69364a5d92a29e67d
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Jul 10 17:34:46 2014 +0200

    nptl: Fix abort in case of set*id failure [BZ #17135]

    If a call to the set*id functions fails in a multi-threaded program,
    the abort introduced in commit 13f7fe35ae2b0ea55dc4b9628763aafdc8bdc30c
    was triggered.

    We address by checking that all calls to set*id on all threads give
    the same result, and only abort if we see success followed by failure
    (or vice versa).

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

Summary of changes:
 ChangeLog            |   12 ++++++
 NEWS                 |    2 +-
 nptl/Makefile        |    1 +
 nptl/allocatestack.c |   27 ++++++++++++-
 nptl/descr.h         |    1 +
 nptl/nptl-init.c     |    6 +-
 nptl/pthreadP.h      |    2 +
 nptl/tst-setuid3.c   |  104 ++++++++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 149 insertions(+), 6 deletions(-)
 create mode 100644 nptl/tst-setuid3.c

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