Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 682fa4507d4d42682ffc76a8a9703c30dbd91e1d
https://github.com/WebKit/WebKit/commit/682fa4507d4d42682ffc76a8a9703c30dbd91e1d
Author: JC Alvarado <[email protected]>
Date: 2023-03-10 (Fri, 10 Mar 2023)
Changed paths:
A LayoutTests/fast/html/canvas-integer-overflow-expected.txt
A LayoutTests/fast/html/canvas-integer-overflow.html
M Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp
Log Message:
-----------
Check pixel buffer before dereferencing
https://bugs.webkit.org/show_bug.cgi?id=253686
rdar://106492794
Reviewed by Aditya Keerthi.
When calculating the area of a rect, there can be an integer overflow
that results in getPixelBuffer returning a nullptr. In this case, we
should return early from postProcessPixelBuffer.
* LayoutTests/fast/html/canvas-integer-overflow-expected.txt: Added.
* LayoutTests/fast/html/canvas-integer-overflow.html: Added.
* Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp:
(WebCore::CanvasRenderingContext2DBase::postProcessPixelBuffer const):
Canonical link: https://commits.webkit.org/261532@main
_______________________________________________
webkit-changes mailing list
[email protected]
https://lists.webkit.org/mailman/listinfo/webkit-changes
