From: Florian Weimer <fweimer@redhat.com>
Date: Wed, 6 Sep 2017 13:20:25 +0000 (+0200)
Subject: resolv: Fix memory leak with OOM during resolv.conf parsing [BZ #22095]
X-Git-Tag: glibc-2.27~957
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5670c4ab256114e869b1df4b05653aa5f909182c;p=thirdparty%2Fglibc.git

resolv: Fix memory leak with OOM during resolv.conf parsing [BZ #22095]
---

diff --git a/ChangeLog b/ChangeLog
index d54e13d05c0..298f0fdcbdb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-09-06  Florian Weimer  <fweimer@redhat.com>
+
+	[BZ #22095]
+	* resolv/res_init.c (res_vinit_1): Avoid memory leak in case of
+	dynarray allocation failure.
+
 2017-09-06  Florian Weimer  <fweimer@redhat.com>
 
 	Remove dead PTR IPv4-to-IPv6 mapping code from nss_dns.
diff --git a/resolv/res_init.c b/resolv/res_init.c
index fa46ce7813c..4e1f9fe8dea 100644
--- a/resolv/res_init.c
+++ b/resolv/res_init.c
@@ -446,6 +446,11 @@ res_vinit_1 (FILE *fp, struct resolv_conf_parser *parser)
                     (&parser->nameserver_list);
                   if (p != NULL)
                     *p = sa;
+                  else
+                    {
+                      free (sa);
+                      return false;
+                    }
                 }
               continue;
             }