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Fix GH-16429: Segmentation fault (access null pointer) in SoapClient #16441

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Fix GH-16429: Segmentation fault (access null pointer) in SoapClient #16441

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5 changes: 3 additions & 2 deletions ext/soap/php_encoding.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2210,8 +2210,8 @@ static xmlNodePtr to_xml_array(encodeTypePtr type, zval *data, int style, xmlNod

iter = ce->get_iterator(ce, data, 0);

if (EG(exception)) {
goto iterator_done;
if (!iter) {
goto iterator_failed_to_get;
}

if (iter->funcs->rewind) {
Expand Down Expand Up @@ -2251,6 +2251,7 @@ static xmlNodePtr to_xml_array(encodeTypePtr type, zval *data, int style, xmlNod
}
iterator_done:
OBJ_RELEASE(&iter->std);
iterator_failed_to_get:
if (EG(exception)) {
zval_ptr_dtor(&array_copy);
ZVAL_UNDEF(&array_copy);
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22 changes: 22 additions & 0 deletions ext/soap/tests/bugs/gh16429.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
--TEST--
GH-16429 (Segmentation fault (access null pointer) in SoapClient)
--EXTENSIONS--
soap
--FILE--
<?php
function gen() {
var_dump(str_repeat("x", yield));
}
$gen = gen();
$gen->send(10);
$fusion = $gen;
$client = new SoapClient(__DIR__."/../interop/Round2/GroupB/round2_groupB.wsdl",array("trace"=>1,"exceptions"=>0));
try {
$client->echo2DStringArray($fusion);
} catch (Exception $e) {
echo $e->getMessage(), "\n";
}
?>
--EXPECT--
string(10) "xxxxxxxxxx"
Cannot traverse an already closed generator
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