[Bug nss/21654] Incorrect pointer alignment in NSS group merge result construction

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

https://sourceware.org/bugzilla/show_bug.cgi?id=21654

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b70f43dcef0ca638d2d550ead8007f7c9bb7e4bb

commit b70f43dcef0ca638d2d550ead8007f7c9bb7e4bb
Author: DJ Delorie <dj@delorie.com>
Date:   Sat Oct 7 13:32:00 2017 +0200

    Fix cast-after-dereference

    Original code was dereferencing a char*, then casting the value
    to size_t.  Should cast the pointer to size_t* then deference.

    (cherry picked from commit f8cef4d07d9641e27629bd3ce2d13f5d702fb251)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=caa97d7a46db35a5ddb7bc53e56a866bc180c3b0

commit caa97d7a46db35a5ddb7bc53e56a866bc180c3b0
Author: DJ Delorie <dj@delorie.com>
Date:   Fri Jul 14 21:46:42 2017 -0400

    Fix BZ #21654 - grp-merge.c alignment

    * grp/grp_merge.c (__copy_grp): Align char** to minimum pointer
    alignment not char alignment.
    (__merge_grp): Likewise.

    (cherry picked from commit 4fa8ae49aa169fb8d97882938e8bee3ed9ce5410)

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

Summary of changes:
 ChangeLog       |   12 ++++++++++++
 NEWS            |    1 +
 grp/grp-merge.c |   18 +++++++++++++++++-
 3 files changed, 30 insertions(+), 1 deletions(-)

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