[Bug nscd/23520] nscd: Use-after-free in addgetnetgrentX and its callers

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https://sourceware.org/bugzilla/show_bug.cgi?id=23520

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7d174f53539bfbfa9cdfa41ead605573d3f219eb

commit 7d174f53539bfbfa9cdfa41ead605573d3f219eb
Author: Florian Weimer <fweimer@redhat.com>
Date:   Tue Aug 28 13:19:27 2018 +0200

    nscd: Fix use-after-free in addgetnetgrentX [BZ #23520]

    addinnetgrX may use the heap-allocated buffer, so free the buffer
    in this function.

    (cherry picked from commit 745664bd798ec8fd50438605948eea594179fba1)

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

Summary of changes:
 ChangeLog            |   12 ++++++++++++
 nscd/netgroupcache.c |   42 +++++++++++++++++++++++++++++-------------
 2 files changed, 41 insertions(+), 13 deletions(-)

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