<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - OOM Assertion failure in JSON.stringify"
href="https://bugs.webkit.org/show_bug.cgi?id=158794">158794</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>OOM Assertion failure in JSON.stringify
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Local Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andre.bargull@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>SVN: rev202088
Build with: perl Tools/Scripts/build-jsc --gtk --debug
The following test case triggers this assertion error:
---
ASSERTION FAILED: m_buffer->length() >= m_length
---
Test case:
---
var s = "a".repeat(0x7ffffff)
var p = new Array(50).fill(s);
var r = JSON.stringify(p)
---
Stack trace:
---
#0 0x00007ffff6de7098 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:317
#1 0x00007ffff6e21883 in WTF::StringBuilder::appendUninitializedSlow<unsigned char> (this=0x7fffffffc790, requiredLength=4160749631)
at ../../Source/WTF/wtf/text/StringBuilder.cpp:227
#2 0x00007ffff6e214d6 in WTF::StringBuilder::appendUninitialized<unsigned char> (this=0x7fffffffc790, length=1) at ../../Source/WTF/wtf/text/StringBuilder.cpp:215
#3 0x00007ffff6e1fc39 in WTF::StringBuilder::append (this=0x7fffffffc790, characters=0x7fffffffc4e4 ",\177", length=1)
at ../../Source/WTF/wtf/text/StringBuilder.cpp:283
#4 0x00007ffff5f80add in WTF::StringBuilder::append (this=0x7fffffffc790, c=44 ',') at ../../Source/WTF/wtf/text/StringBuilder.h:144
#5 0x00007ffff5f80b0c in WTF::StringBuilder::append (this=0x7fffffffc790, c=44 ',') at ../../Source/WTF/wtf/text/StringBuilder.h:149
#6 0x00007ffff6c074c9 in JSC::Stringifier::Holder::appendNextProperty (this=0x7fffffffc8e8, stringifier=..., builder=...)
at ../../Source/JavaScriptCore/runtime/JSONObject.cpp:493
#7 0x00007ffff6c06e53 in JSC::Stringifier::appendStringifiedValue (this=0x7fffffffc860, builder=..., value=..., holder=0x7fffaf1dbf40, propertyName=...)
at ../../Source/JavaScriptCore/runtime/JSONObject.cpp:384
#8 0x00007ffff6c064c5 in JSC::Stringifier::stringify (this=0x7fffffffc860, value=...) at ../../Source/JavaScriptCore/runtime/JSONObject.cpp:259
#9 0x00007ffff6c08ee5 in JSC::JSONProtoFuncStringify (exec=0x7fffffffcb20) at ../../Source/JavaScriptCore/runtime/JSONObject.cpp:782
...
---</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>