Bug 195502 - The event dispatcher thread reads ScrollingTree's m_rootNode without locking
Summary: The event dispatcher thread reads ScrollingTree's m_rootNode without locking
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Scrolling (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-03-08 17:24 PST by Simon Fraser (smfr)
Modified: 2019-03-08 17:24 PST (History)
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Description Simon Fraser (smfr) 2019-03-08 17:24:53 PST
ScrollingTree::shouldHandleWheelEventSynchronously() which runs on the event dispatcher thread consults m_rootNode, but no locking prevents this being modified by the scrolling thread at the same time.