[Webkit-unassigned] [Bug 141990] New: MachineThreads::Thread clean up has a use after free race condition

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=141990

            Bug ID: 141990
           Summary: MachineThreads::Thread clean up has a use after free
                    race condition
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

Before r179753 (https://bugs.webkit.org/show_bug.cgi?id=141317), there was a race condition that could result in a small window for a use after free scenario.  After r179753, there is a memory leak.  We will roll out r179753 here and implement a fix for the race condition using a different approach.

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