diff --git a/src/Symfony/Component/HttpFoundation/IpUtils.php b/src/Symfony/Component/HttpFoundation/IpUtils.php
index e08301ece1..f2cf356e5c 100644
--- a/src/Symfony/Component/HttpFoundation/IpUtils.php
+++ b/src/Symfony/Component/HttpFoundation/IpUtils.php
@@ -112,8 +112,12 @@ class IpUtils
             $netmask = 128;
         }
 
-        $bytesAddr = unpack('n*', inet_pton($address));
-        $bytesTest = unpack('n*', inet_pton($requestIp));
+        $bytesAddr = unpack('n*', @inet_pton($address));
+        $bytesTest = unpack('n*', @inet_pton($requestIp));
+
+        if (!$bytesAddr || !$bytesTest) {
+            return false;
+        }
 
         for ($i = 1, $ceil = ceil($netmask / 16); $i <= $ceil; ++$i) {
             $left = $netmask - 16 * ($i - 1);
diff --git a/src/Symfony/Component/HttpFoundation/Request.php b/src/Symfony/Component/HttpFoundation/Request.php
index b08a14ac3b..d18fe74bac 100644
--- a/src/Symfony/Component/HttpFoundation/Request.php
+++ b/src/Symfony/Component/HttpFoundation/Request.php
@@ -780,6 +780,8 @@ class Request
 
             if (!filter_var($clientIp, FILTER_VALIDATE_IP)) {
                 unset($clientIps[$key]);
+
+                continue;
             }
 
             if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
diff --git a/src/Symfony/Component/HttpFoundation/Tests/IpUtilsTest.php b/src/Symfony/Component/HttpFoundation/Tests/IpUtilsTest.php
index a7bb62aef6..877053f0f3 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/IpUtilsTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/IpUtilsTest.php
@@ -63,6 +63,8 @@ class IpUtilsTest extends \PHPUnit_Framework_TestCase
             array(true, '2a01:198:603:0:396e:4789:8e99:890f', array('::1', '2a01:198:603:0::/65')),
             array(true, '2a01:198:603:0:396e:4789:8e99:890f', array('2a01:198:603:0::/65', '::1')),
             array(false, '2a01:198:603:0:396e:4789:8e99:890f', array('::1', '1a01:198:603:0::/65')),
+            array(false, '}__test|O:21:&quot;JDatabaseDriverMysqli&quot;:3:{s:2', '::1'),
+            array(false, '2a01:198:603:0:396e:4789:8e99:890f', 'unknown'),
         );
     }
 
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
index a213c44193..20a2272c2f 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
@@ -866,6 +866,7 @@ class RequestTest extends \PHPUnit_Framework_TestCase
 
             // invalid forwarded IP is ignored
             array(array('88.88.88.88'), '127.0.0.1', 'unknown,88.88.88.88', array('127.0.0.1')),
+            array(array('88.88.88.88'), '127.0.0.1', '}__test|O:21:&quot;JDatabaseDriverMysqli&quot;:3:{s:2,88.88.88.88', array('127.0.0.1')),
         );
     }