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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/199422">199422</a></dd>
<dt>Author</dt> <dd>carlosgc@webkit.org</dd>
<dt>Date</dt> <dd>2016-04-13 00:39:03 -0700 (Wed, 13 Apr 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/198471">r198471</a> - Data URL DecodeTask may get deleted outside main thread
https://bugs.webkit.org/show_bug.cgi?id=155584
rdar://problem/24492104
Reviewed by David Kilzer.
Follow-up: fix a possible null pointer crash.
* platform/network/DataURLDecoder.cpp:
(WebCore::DataURLDecoder::DecodingResultDispatcher::startTimer):
If timer fires under startOneShot m_decodeTask may become zero before schedule() is called.
Fix by copying schedule context to a local before calling startOneShot.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#releasesWebKitGTKwebkit212SourceWebCoreChangeLog">releases/WebKitGTK/webkit-2.12/Source/WebCore/ChangeLog</a></li>
<li><a href="#releasesWebKitGTKwebkit212SourceWebCoreplatformnetworkDataURLDecodercpp">releases/WebKitGTK/webkit-2.12/Source/WebCore/platform/network/DataURLDecoder.cpp</a></li>
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<h3>Diff</h3>
<a id="releasesWebKitGTKwebkit212SourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.12/Source/WebCore/ChangeLog (199421 => 199422)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.12/Source/WebCore/ChangeLog 2016-04-13 07:37:03 UTC (rev 199421)
+++ releases/WebKitGTK/webkit-2.12/Source/WebCore/ChangeLog 2016-04-13 07:39:03 UTC (rev 199422)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2016-03-19 Antti Koivisto <antti@apple.com>
+
+ Data URL DecodeTask may get deleted outside main thread
+ https://bugs.webkit.org/show_bug.cgi?id=155584
+ rdar://problem/24492104
+
+ Reviewed by David Kilzer.
+
+ Follow-up: fix a possible null pointer crash.
+
+ * platform/network/DataURLDecoder.cpp:
+ (WebCore::DataURLDecoder::DecodingResultDispatcher::startTimer):
+
+ If timer fires under startOneShot m_decodeTask may become zero before schedule() is called.
+ Fix by copying schedule context to a local before calling startOneShot.
+
</ins><span class="cx"> 2016-03-18 Darin Adler <darin@apple.com>
</span><span class="cx">
</span><span class="cx"> ASSERTION FAILED: m_isValid == valid() in WebCore::HTMLFormControlElement::isValidFormControlElement
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit212SourceWebCoreplatformnetworkDataURLDecodercpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.12/Source/WebCore/platform/network/DataURLDecoder.cpp (199421 => 199422)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.12/Source/WebCore/platform/network/DataURLDecoder.cpp 2016-04-13 07:37:03 UTC (rev 199421)
+++ releases/WebKitGTK/webkit-2.12/Source/WebCore/platform/network/DataURLDecoder.cpp 2016-04-13 07:39:03 UTC (rev 199422)
</span><span class="lines">@@ -75,8 +75,10 @@
</span><span class="cx"> {
</span><span class="cx"> // Keep alive until the timer has fired.
</span><span class="cx"> ref();
</span><ins>+
+ auto scheduledPairs = m_decodeTask->scheduleContext.scheduledPairs;
</ins><span class="cx"> m_timer.startOneShot(0);
</span><del>- m_timer.schedule(m_decodeTask->scheduleContext.scheduledPairs);
</del><ins>+ m_timer.schedule(scheduledPairs);
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> void timerFired()
</span></span></pre>
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