[Webkit-unassigned] [Bug 277420] New: Browser crashes on WebAssemby memory access out of bounds

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=277420

            Bug ID: 277420
           Summary: Browser crashes on WebAssemby memory access out of
                    bounds
           Product: WebKit
           Version: Safari 18
          Hardware: Mac (Apple Silicon)
                OS: macOS 15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebAssembly
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hanankibria123 at gmail.com

I am using ffmpeg.wasm to transcode video on the fly in the browser. It is a multhreaded web assembly code. If the webassembly tries to access memory out of bounds the safari browser on MacOS crashes and reloads. The same behaviour for chrome is to catch the runtime error thrown.Logs cannot be provided as the browser reloads instantly with new PID.

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