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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/186420">186420</a></dd>
<dt>Author</dt> <dd>carlosgc@webkit.org</dd>
<dt>Date</dt> <dd>2015-07-07 01:59:48 -0700 (Tue, 07 Jul 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/185766">r185766</a> - All calls of ImageBuffer::create should null check the return value
https://bugs.webkit.org/show_bug.cgi?id=22132
Reviewed by Zalan Bujtas.
ImageBuffer::create returns nullptr for a number of reasons, and should be
expected to do so. We missed this check in a few places, resulting in
crashes on some systems. Likewise, ImageBuffer::copyImage may return nullptr
in normal use and should be checked.
Source/WebCore:
* platform/graphics/BitmapImage.cpp:
(WebCore::BitmapImage::drawPattern): Add nullptr check for create and copyImage. Remove
extra call to 'setImageObserver'.
* platform/graphics/cairo/ImageBufferCairo.cpp:
(WebCore::ImageBuffer::drawPattern): Add nullptr check for copyImage.
* platform/graphics/cg/ImageBufferCG.cpp:
(WebCore::ImageBuffer::drawPattern): Add nullptr checks for copyImage.
* platform/graphics/filters/FETile.cpp:
(WebCore::FETile::platformApplySoftware): Add nullptr check for copyImage.
* platform/graphics/filters/FilterEffect.cpp:
(WebCore::FilterEffect::asImageBuffer): Add nullptr check for create.
(WebCore::FilterEffect::openCLImageToImageBuffer): Ditto.
* platform/graphics/texmap/BitmapTexture.cpp:
(WebCore::BitmapTexture::updateContents): Add nullptr checks for create and copyImage.
* svg/graphics/SVGImage.cpp:
(WebCore::SVGImage::drawPatternForContainer): Add nullptr check for copyImage.
Source/WebKit/mac:
* WebCoreSupport/WebContextMenuClient.mm:
(WebContextMenuClient::imageForCurrentSharingServicePickerItem): Add nullptr check
for copyImage.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoreChangeLog">releases/WebKitGTK/webkit-2.8/Source/WebCore/ChangeLog</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsBitmapImagecpp">releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/BitmapImage.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicscairoImageBufferCairocpp">releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/cairo/ImageBufferCairo.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsfiltersFETilecpp">releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FETile.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsfiltersFilterEffectcpp">releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FilterEffect.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebCoresvggraphicsSVGImagecpp">releases/WebKitGTK/webkit-2.8/Source/WebCore/svg/graphics/SVGImage.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebKitmacChangeLog">releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/ChangeLog</a></li>
<li><a href="#releasesWebKitGTKwebkit28SourceWebKitmacWebCoreSupportWebContextMenuClientmm">releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/WebCoreSupport/WebContextMenuClient.mm</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="releasesWebKitGTKwebkit28SourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/ChangeLog (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/ChangeLog        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/ChangeLog        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -1,3 +1,45 @@
</span><ins>+2015-06-19 Brent Fulgham <bfulgham@apple.com>
+
+ Follow-up fix to r185766.
+ https://bugs.webkit.org/show_bug.cgi?id=22132
+
+ Reviewed by Zalan Bujtas.
+
+ Suggested by Darin Adler in the bug.
+
+ * platform/graphics/filters/FETile.cpp:
+ (WebCore::FETile::platformApplySoftware): Use WTF::move when passing
+ the new tileImageCopy RefPtr.
+
+2015-06-19 Brent Fulgham <bfulgham@apple.com>
+
+ All calls of ImageBuffer::create should null check the return value
+ https://bugs.webkit.org/show_bug.cgi?id=22132
+
+ Reviewed by Zalan Bujtas.
+
+ ImageBuffer::create returns nullptr for a number of reasons, and should be
+ expected to do so. We missed this check in a few places, resulting in
+ crashes on some systems. Likewise, ImageBuffer::copyImage may return nullptr
+ in normal use and should be checked.
+
+ * platform/graphics/BitmapImage.cpp:
+ (WebCore::BitmapImage::drawPattern): Add nullptr check for create and copyImage. Remove
+ extra call to 'setImageObserver'.
+ * platform/graphics/cairo/ImageBufferCairo.cpp:
+ (WebCore::ImageBuffer::drawPattern): Add nullptr check for copyImage.
+ * platform/graphics/cg/ImageBufferCG.cpp:
+ (WebCore::ImageBuffer::drawPattern): Add nullptr checks for copyImage.
+ * platform/graphics/filters/FETile.cpp:
+ (WebCore::FETile::platformApplySoftware): Add nullptr check for copyImage.
+ * platform/graphics/filters/FilterEffect.cpp:
+ (WebCore::FilterEffect::asImageBuffer): Add nullptr check for create.
+ (WebCore::FilterEffect::openCLImageToImageBuffer): Ditto.
+ * platform/graphics/texmap/BitmapTexture.cpp:
+ (WebCore::BitmapTexture::updateContents): Add nullptr checks for create and copyImage.
+ * svg/graphics/SVGImage.cpp:
+ (WebCore::SVGImage::drawPatternForContainer): Add nullptr check for copyImage.
+
</ins><span class="cx"> 2015-06-18 Benjamin Poulain <bpoulain@apple.com>
</span><span class="cx">
</span><span class="cx"> [CSS JIT][ARMv7] The pseudo element early exit trashes r6
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsBitmapImagecpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/BitmapImage.cpp (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/BitmapImage.cpp        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/BitmapImage.cpp        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -1,6 +1,6 @@
</span><span class="cx"> /*
</span><span class="cx"> * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
</span><del>- * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
</del><ins>+ * Copyright (C) 2004, 2005, 2006, 2008, 2015 Apple Inc. All rights reserved.
</ins><span class="cx"> *
</span><span class="cx"> * Redistribution and use in source and binary forms, with or without
</span><span class="cx"> * modification, are permitted provided that the following conditions
</span><span class="lines">@@ -618,13 +618,14 @@
</span><span class="cx"> }
</span><span class="cx"> if (!m_cachedImage) {
</span><span class="cx"> std::unique_ptr<ImageBuffer> buffer = ImageBuffer::create(expandedIntSize(tileRect.size()));
</span><del>- ASSERT(buffer.get());
</del><ins>+ if (!buffer)
+ return;
</ins><span class="cx">
</span><span class="cx"> ImageObserver* observer = imageObserver();
</span><span class="cx"> ASSERT(observer);
</span><span class="cx">
</span><span class="cx"> // Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
</span><del>- setImageObserver(0);
</del><ins>+ setImageObserver(nullptr);
</ins><span class="cx">
</span><span class="cx"> draw(buffer->context(), tileRect, tileRect, styleColorSpace, op, blendMode, ImageOrientationDescription());
</span><span class="cx">
</span><span class="lines">@@ -632,9 +633,10 @@
</span><span class="cx"> buffer->convertToLuminanceMask();
</span><span class="cx">
</span><span class="cx"> m_cachedImage = buffer->copyImage(DontCopyBackingStore, Unscaled);
</span><ins>+ if (!m_cachedImage)
+ return;
+
</ins><span class="cx"> m_cachedImage->setSpaceSize(spaceSize());
</span><del>-
- setImageObserver(observer);
</del><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> ctxt->setDrawLuminanceMask(false);
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicscairoImageBufferCairocpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/cairo/ImageBufferCairo.cpp (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/cairo/ImageBufferCairo.cpp        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/cairo/ImageBufferCairo.cpp        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -161,8 +161,8 @@
</span><span class="cx"> void ImageBuffer::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const AffineTransform& patternTransform,
</span><span class="cx"> const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect, BlendMode)
</span><span class="cx"> {
</span><del>- RefPtr<Image> image = copyImage(DontCopyBackingStore);
- image->drawPattern(context, srcRect, patternTransform, phase, styleColorSpace, op, destRect);
</del><ins>+ if (RefPtr<Image> image = copyImage(DontCopyBackingStore))
+ image->drawPattern(context, srcRect, patternTransform, phase, styleColorSpace, op, destRect);
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> void ImageBuffer::platformTransformColorSpace(const Vector<int>& lookUpTable)
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsfiltersFETilecpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FETile.cpp (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FETile.cpp        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FETile.cpp        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -71,8 +71,12 @@
</span><span class="cx"> tileImageContext->translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
</span><span class="cx"> tileImageContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, in->absolutePaintRect().location());
</span><span class="cx">
</span><del>- auto pattern = Pattern::create(tileImage->copyImage(CopyBackingStore), true, true);
</del><ins>+ auto tileImageCopy = tileImage->copyImage(CopyBackingStore);
+ if (!tileImageCopy)
+ return;
</ins><span class="cx">
</span><ins>+ auto pattern = Pattern::create(WTF::move(tileImageCopy), true, true);
+
</ins><span class="cx"> AffineTransform patternTransform;
</span><span class="cx"> patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
</span><span class="cx"> pattern.get().setPatternSpaceTransform(patternTransform);
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebCoreplatformgraphicsfiltersFilterEffectcpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FilterEffect.cpp (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FilterEffect.cpp        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/platform/graphics/filters/FilterEffect.cpp        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -3,6 +3,7 @@
</span><span class="cx"> * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
</span><span class="cx"> * Copyright (C) Research In Motion Limited 2010. All rights reserved.
</span><span class="cx"> * Copyright (C) 2012 University of Szeged
</span><ins>+ * Copyright (C) 2015 Apple Inc. All rights reserved.
</ins><span class="cx"> *
</span><span class="cx"> * This library is free software; you can redistribute it and/or
</span><span class="cx"> * modify it under the terms of the GNU Library General Public
</span><span class="lines">@@ -278,7 +279,7 @@
</span><span class="cx"> ImageBuffer* FilterEffect::asImageBuffer()
</span><span class="cx"> {
</span><span class="cx"> if (!hasResult())
</span><del>- return 0;
</del><ins>+ return nullptr;
</ins><span class="cx"> if (m_imageBufferResult)
</span><span class="cx"> return m_imageBufferResult.get();
</span><span class="cx"> #if ENABLE(OPENCL)
</span><span class="lines">@@ -286,6 +287,9 @@
</span><span class="cx"> return openCLImageToImageBuffer();
</span><span class="cx"> #endif
</span><span class="cx"> m_imageBufferResult = ImageBuffer::create(m_absolutePaintRect.size(), m_filter->filterScale(), m_resultColorSpace, m_filter->renderingMode());
</span><ins>+ if (!m_imageBufferResult)
+ return nullptr;
+
</ins><span class="cx"> IntRect destinationRect(IntPoint(), m_absolutePaintRect.size());
</span><span class="cx"> if (m_premultipliedImageResult)
</span><span class="cx"> m_imageBufferResult->putByteArray(Premultiplied, m_premultipliedImageResult.get(), destinationRect.size(), destinationRect, IntPoint());
</span><span class="lines">@@ -301,7 +305,7 @@
</span><span class="cx"> ASSERT(context);
</span><span class="cx">
</span><span class="cx"> if (context->inError())
</span><del>- return 0;
</del><ins>+ return nullptr;
</ins><span class="cx">
</span><span class="cx"> size_t origin[3] = { 0, 0, 0 };
</span><span class="cx"> size_t region[3] = { m_absolutePaintRect.width(), m_absolutePaintRect.height(), 1 };
</span><span class="lines">@@ -309,12 +313,15 @@
</span><span class="cx"> RefPtr<Uint8ClampedArray> destinationPixelArray = Uint8ClampedArray::create(m_absolutePaintRect.width() * m_absolutePaintRect.height() * 4);
</span><span class="cx">
</span><span class="cx"> if (context->isFailed(clFinish(context->commandQueue())))
</span><del>- return 0;
</del><ins>+ return nullptr;
</ins><span class="cx">
</span><span class="cx"> if (context->isFailed(clEnqueueReadImage(context->commandQueue(), m_openCLImageResult, CL_TRUE, origin, region, 0, 0, destinationPixelArray->data(), 0, 0, 0)))
</span><del>- return 0;
</del><ins>+ return nullptr;
</ins><span class="cx">
</span><span class="cx"> m_imageBufferResult = ImageBuffer::create(m_absolutePaintRect.size());
</span><ins>+ if (!m_imageBufferResult)
+ return nullptr;
+
</ins><span class="cx"> IntRect destinationRect(IntPoint(), m_absolutePaintRect.size());
</span><span class="cx"> m_imageBufferResult->putByteArray(Unmultiplied, destinationPixelArray.get(), destinationRect.size(), destinationRect, IntPoint());
</span><span class="cx">
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebCoresvggraphicsSVGImagecpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebCore/svg/graphics/SVGImage.cpp (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebCore/svg/graphics/SVGImage.cpp        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebCore/svg/graphics/SVGImage.cpp        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -1,6 +1,6 @@
</span><span class="cx"> /*
</span><span class="cx"> * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
</span><del>- * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
</del><ins>+ * Copyright (C) 2008, 2009, 2015 Apple Inc. All rights reserved.
</ins><span class="cx"> * Copyright (C) Research In Motion Limited 2011. All rights reserved.
</span><span class="cx"> *
</span><span class="cx"> * Redistribution and use in source and binary forms, with or without
</span><span class="lines">@@ -207,6 +207,8 @@
</span><span class="cx"> buffer->convertToLuminanceMask();
</span><span class="cx">
</span><span class="cx"> RefPtr<Image> image = buffer->copyImage(DontCopyBackingStore, Unscaled);
</span><ins>+ if (!image)
+ return;
</ins><span class="cx"> image->setSpaceSize(spaceSize());
</span><span class="cx">
</span><span class="cx"> // Adjust the source rect and transform due to the image buffer's scaling.
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebKitmacChangeLog"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/ChangeLog (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/ChangeLog        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/ChangeLog        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2015-06-19 Brent Fulgham <bfulgham@apple.com>
+
+ All calls of ImageBuffer::create should null check the return value
+ https://bugs.webkit.org/show_bug.cgi?id=22132
+
+ Reviewed by Zalan Bujtas.
+
+ ImageBuffer::create returns nullptr for a number of reasons, and should be
+ expected to do so. We missed this check in a few places, resulting in
+ crashes on some systems. Likewise, ImageBuffer::copyImage may return nullptr
+ in normal use and should be checked.
+
+ * WebCoreSupport/WebContextMenuClient.mm:
+ (WebContextMenuClient::imageForCurrentSharingServicePickerItem): Add nullptr check
+ for copyImage.
+
</ins><span class="cx"> 2015-06-13 Chris Dumez <cdumez@apple.com>
</span><span class="cx">
</span><span class="cx"> [WK2] API::Navigation objects are leaked on history navigation to HistoryItems in PageCache
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit28SourceWebKitmacWebCoreSupportWebContextMenuClientmm"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/WebCoreSupport/WebContextMenuClient.mm (186419 => 186420)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/WebCoreSupport/WebContextMenuClient.mm        2015-07-07 08:51:15 UTC (rev 186419)
+++ releases/WebKitGTK/webkit-2.8/Source/WebKit/mac/WebCoreSupport/WebContextMenuClient.mm        2015-07-07 08:59:48 UTC (rev 186420)
</span><span class="lines">@@ -471,6 +471,9 @@
</span><span class="cx"> frameView->setPaintBehavior(oldPaintBehavior);
</span><span class="cx">
</span><span class="cx"> RefPtr<Image> image = buffer->copyImage(DontCopyBackingStore);
</span><ins>+ if (!image)
+ return nil;
+
</ins><span class="cx"> return image->getNSImage();
</span><span class="cx"> }
</span><span class="cx"> #endif
</span></span></pre>
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