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[Bug network/19830] nss_dns: should check RDATA length against buffer length


https://sourceware.org/bugzilla/show_bug.cgi?id=19830

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The branch, gentoo/2.23 has been updated
       via  5a7f88f0858b67a00c631850a71d7c320ca773ab (commit)
      from  e4acddbc00a49dd3451a1b10635d35eb7c64b474 (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5a7f88f0858b67a00c631850a71d7c320ca773ab

commit 5a7f88f0858b67a00c631850a71d7c320ca773ab
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Apr 27 15:11:41 2016 +0200

    nss_dns: Validate RDATA length against packet length [BZ #19830]

    In _nss_dns_getcanonname_r, a check for the availability of RR metadata
    was missing as well.

    (cherry picked from commit f749498fa53df9ead81e291cd9378d67483c2452)
    (cherry picked from commit f233c608d11434aa4a802ded6acdcac1f092729f)

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

Summary of changes:
 resolv/nss_dns/dns-canon.c |   16 +++++++++++++---
 resolv/nss_dns/dns-host.c  |   15 +++++++++++++++
 2 files changed, 28 insertions(+), 3 deletions(-)

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