[Webkit-unassigned] [Bug 239551] New: HARDENING: Add MESSAGE_CHECK in some Captive Portal cases

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=239551

            Bug ID: 239551
           Summary: HARDENING: Add MESSAGE_CHECK in some Captive Portal
                    cases
           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: bfulgham at webkit.org

Although we prevent access to WebGL and WebAudio APIs in the WebContent Process, we should also add MESSAGE_CHECK protections in the GPU Process to prevent it from accepting messages for prohibited API from a Captive Portal process.

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