[Bug network/14498] default /var/db/services.db triggers infinite CPU loop with getaddrinfo()

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

https://sourceware.org/bugzilla/show_bug.cgi?id=14498

--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".

The branch, master has been updated
       via  b59d114bd1e0571fba85b3cbcc61d4f4b42f5d1b (commit)
       via  f3d945d5f2b9d7d44032c461af588c6d54f5664b (commit)
       via  4969890247d7d6a548f17641ed5a18f4b713d211 (commit)
      from  81959214868c9ac9e425fbf0fa3fd9135e207f7e (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b59d114bd1e0571fba85b3cbcc61d4f4b42f5d1b

commit b59d114bd1e0571fba85b3cbcc61d4f4b42f5d1b
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Sat Sep 27 07:23:39 2014 -0300

    BZ#16469: resolv: skip leading dot in domain to search

    This should only happen if the domain to search is the root,
    represented as "." rather than by an empty string.  Skipping it here
    prevents libc_res_nquerydomain from duplicating the trailing dot,
    which would cause the domain name compression to fail.

    for  ChangeLog

        [BZ #16469]
        * resolv/res_query.c (__libc_res_nsearch): Skip leading dot in
        search domain names.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f3d945d5f2b9d7d44032c461af588c6d54f5664b

commit f3d945d5f2b9d7d44032c461af588c6d54f5664b
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Sun Nov 9 13:51:09 2014 -0200

    BZ#16469: don't drop trailing dot in res_nquerydomain(..., name, NULL, ...)

    If we drop it here, we will fail to detect a duplicate trailing dot
    later on.  Retaining, OTOH, has no ill effects whatsoever, and it even
    saves us the trouble of copying the domain name minus the trailing
    dot, like we used to do.

    for ChangeLog

        [BZ #16469]
        * NEWS: Update.
        * resolv/res_query.c (__libc_res_nquerydomain): Retain
        trailing dot.
        * posix/tst-getaddrinfo5.c: New.
        * posix/Makefile (tests): Add it.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4969890247d7d6a548f17641ed5a18f4b713d211

commit 4969890247d7d6a548f17641ed5a18f4b713d211
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Fri Nov 21 03:29:56 2014 -0200

    BZ#14498: fix infinite loop in nss_db_getservbyname

    nss_db uses nss_files code for services, but a continue on protocol
    mismatch that doesn't affect nss_files skipped the code that advanced
    to the next db entry.  Any one of these changes would suffice to fix
    it, but fixing both makes them both safer to reuse elsewhere.

    for  ChangeLog

        [BZ #14498]
        * NEWS: Fixed.
        * nss/nss_db/db-XXX.c (_nss_db_get##name##_r): Update hidx
        after parsing line but before break_if_match.
        * nss/nss_files/files-service (DB_LOOKUP): Don't "continue;"
        if there is a protocol mismatch.

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

Summary of changes:
 ChangeLog                     |   24 ++++++++++++++
 NEWS                          |    8 ++--
 nss/nss_db/db-XXX.c           |    9 +++--
 nss/nss_files/files-service.c |    7 +++-
 posix/Makefile                |    2 +-
 posix/tst-getaddrinfo5.c      |   69 +++++++++++++++++++++++++++++++++++++++++
 resolv/res_query.c            |   30 +++++++++--------
 7 files changed, 125 insertions(+), 24 deletions(-)
 create mode 100644 posix/tst-getaddrinfo5.c

-- 
You are receiving this mail because:
You are on the CC list for the bug.