Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 868fdd2f60885a5095ab3888261aed0ba002cc03
https://github.com/WebKit/WebKit/commit/868fdd2f60885a5095ab3888261aed0ba002cc03
Author: Chris Dumez <[email protected]>
Date: 2023-11-01 (Wed, 01 Nov 2023)
Changed paths:
M Source/WebCore/platform/mac/ScrollbarsControllerMac.mm
Log Message:
-----------
Use-after-free under WebCore::Scrollbar::supportsUpdateOnSecondaryThread
https://bugs.webkit.org/show_bug.cgi?id=259890
rdar://113037440
Reviewed by Ryosuke Niwa.
Use a WeakPtr for _scrollbar instead of a raw pointer and add a null-check
in [WebScrollbarPartAnimation setCurrentProgress:].
* Source/WebCore/platform/mac/ScrollbarsControllerMac.mm:
(-[WebScrollbarPartAnimation setCurrentProgress:]):
(-[WebScrollerImpDelegate
setUpAlphaAnimation:scrollerPainter:part:animateAlphaTo:duration:]):
(-[WebScrollerImpDelegate scrollerImp:animateUIStateTransitionWithDuration:]):
(-[WebScrollerImpDelegate scrollerImp:animateExpansionTransitionWithDuration:]):
Originally-landed-as: 265870.236@safari-7616-branch (bf54ee3c4df6).
rdar://117809355
Canonical link: https://commits.webkit.org/270099@main
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