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)
0 users

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
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.