eglibc: CVE-2014-9402 endless loop in getaddr_r

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=11e3417af6e354f1942c68a271ae51e892b2814d

Upstream-Status: Backport

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>

From 11e3417af6e354f1942c68a271ae51e892b2814d Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Mon, 15 Dec 2014 17:41:13 +0100
Subject: [PATCH] Avoid infinite loop in nss_dns getnetbyname [BZ #17630]

===================================================================
--- git.orig/resolv/nss_dns/dns-network.c
+++ git/resolv/nss_dns/dns-network.c
@@ -398,8 +398,8 @@ getanswer_r (const querybuf *answer, int
 
 	case BYNAME:
 	  {
-	    char **ap = result->n_aliases++;
-	    while (*ap != NULL)
+	    char **ap;
+	    for (ap = result->n_aliases; *ap != NULL; ++ap)
 	      {
 		/* Check each alias name for being of the forms:
 		   4.3.2.1.in-addr.arpa		= net 1.2.3.4