[Webkit-unassigned] [Bug 241813] New: std::variant decoding with out-of-bounds index should fail instead of decoding the 0'th type

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=241813

            Bug ID: 241813
           Summary: std::variant decoding with out-of-bounds index should
                    fail instead of decoding the 0'th type
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: achristensen at apple.com
                CC: kkinnunen at apple.com

Doesn't really decrease any powers of a compromised process, but IPC bounds checks are generally a good idea.  This prevents a debug assertion in fuzzers.

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