Merge branch 'PHP-5.6'

* PHP-5.6:
  5.4.38 next
  Updated NEWS
  Updated NEWS
  Fix bug #68711 Remove useless checks. 'num' is unsigned and cannot be <0.
  Fix bug #68799: Free called on unitialized pointer
  Fix for bug #68710 (Use After Free Vulnerability in PHP's unserialize())

Conflicts:
	ext/exif/exif.c
	ext/standard/var_unserializer.c
	ext/standard/var_unserializer.re

4 files changed, 89 insertions, 1 deletions

diff --git a/ext/exif/exif.c b/ext/exif/exif.c
index d889db06fd..0e25a05cf2 100644
--- a/ext/exif/exif.c
+++ b/ext/exif/exif.c
@@ -2695,7 +2695,7 @@ static int exif_process_user_comment(image_info_type *ImageInfo, char **pszInfoP
 static int exif_process_unicode(image_info_type *ImageInfo, xp_field_type *xp_field, int tag, char *szValuePtr, int ByteCount)
 {
 	xp_field->tag = tag;
-
+	xp_field->value = NULL;
 	/* XXX this will fail again if encoding_converter returns on error something different than SIZE_MAX   */
 	if (zend_multibyte_encoding_converter(
 			(unsigned char**)&xp_field->value,
diff --git a/ext/exif/tests/bug68799.jpg b/ext/exif/tests/bug68799.jpg
new file mode 100644
index 0000000000..acc326dbbf
--- /dev/null
+++ b/ext/exif/tests/bug68799.jpg
diff --git a/ext/exif/tests/bug68799.phpt b/ext/exif/tests/bug68799.phpt
new file mode 100644
index 0000000000..b09f21ca7b
--- /dev/null
+++ b/ext/exif/tests/bug68799.phpt
@@ -0,0 +1,63 @@
+--TEST--
+Bug #68799 (Free called on unitialized pointer)
+--SKIPIF--
+<?php if (!extension_loaded('exif')) print 'skip exif extension not available';?>
+--FILE--
+<?php
+/*
+* Pollute the heap. Helps trigger bug. Sometimes not needed.
+*/
+class A {
+    function __construct() {
+        $a = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAa';
+        $this->a = $a . $a . $a . $a . $a . $a;
+    }
+};
+
+function doStuff ($limit) {
+
+    $a = new A;
+
+    $b = array();
+    for ($i = 0; $i < $limit; $i++) {
+        $b[$i] = clone $a;
+    }
+
+    unset($a);
+
+    gc_collect_cycles();
+}
+
+$iterations = 3;
+
+doStuff($iterations);
+doStuff($iterations);
+
+gc_collect_cycles();
+
+print_r(exif_read_data(__DIR__.'/bug68799.jpg'));
+
+?>
+--EXPECTF--
+Array
+(
+    [FileName] => bug68799.jpg
+    [FileDateTime] => %d
+    [FileSize] => 735
+    [FileType] => 2
+    [MimeType] => image/jpeg
+    [SectionsFound] => ANY_TAG, IFD0, WINXP
+    [COMPUTED] => Array
+        (
+            [html] => width="1" height="1"
+            [Height] => 1
+            [Width] => 1
+            [IsColor] => 1
+            [ByteOrderMotorola] => 1
+        )
+
+    [XResolution] => 96/1
+    [YResolution] => 96/1
+    [ResolutionUnit] => 2
+    [Author] => 
+)
diff --git a/ext/standard/tests/strings/bug68710.phpt b/ext/standard/tests/strings/bug68710.phpt
new file mode 100644
index 0000000000..729a12011b
--- /dev/null
+++ b/ext/standard/tests/strings/bug68710.phpt
@@ -0,0 +1,25 @@
+--TEST--
+Bug #68710 Use after free vulnerability in unserialize() (bypassing the
+CVE-2014-8142 fix)
+--FILE--
+<?php
+for ($i=4; $i<100; $i++) {
+    $m = new StdClass();
+
+    $u = array(1);
+
+    $m->aaa = array(1,2,&$u,4,5);
+    $m->bbb = 1;
+    $m->ccc = &$u;
+    $m->ddd = str_repeat("A", $i);
+
+    $z = serialize($m);
+    $z = str_replace("aaa", "123", $z);
+    $z = str_replace("bbb", "123", $z);
+    $y = unserialize($z);
+    $z = serialize($y);
+}
+?>
+===DONE===
+--EXPECTF--
+===DONE===