[Webkit-unassigned] [Bug 188171] New: [macOS] All WindowServer connections should be closed before denying access.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jul 30 10:15:46 PDT 2018


https://bugs.webkit.org/show_bug.cgi?id=188171

            Bug ID: 188171
           Summary: [macOS] All WindowServer connections should be closed
                    before denying access.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pvollan at apple.com

All WindowServer connections in the WebContent process should be closed before denying access to the WindowServer, otherwise calling CGSSetDenyWindowServerConnections(true) will fail. Currently, there are no open WindowServer connections at this point, but this might change in the future. We should call CGSShutdownServerConnections() before calling CGSSetDenyWindowServerConnections(true) to make sure WindowServer connections are always successfully denied. Thanks to Alex Gaynor at Mozilla (agaynor at mozilla.com) for identifying this issue.

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