[Webkit-unassigned] [Bug 270610] New: [IPCTestingAPI] JSGlobalObject may be destroyed when sending IPC messages during page teardown

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=270610

            Bug ID: 270610
           Summary: [IPCTestingAPI] JSGlobalObject may be destroyed when
                    sending IPC messages during page teardown
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: charliew at apple.com

Some objects send IPC messages in their destructor. So, when the page is being torn down, it is possible that the JSGlobalObject associated with the JSContextRef we are storing has already been destroyed. To fix this, we should instead hold a weak reference to the global object and early return when it has been destroyed.

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