[Webkit-unassigned] [Bug 158082] New: Syntax checking parser is accepting invalid function declaration in eval, leading to crash when reprising

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158082

            Bug ID: 158082
           Summary: Syntax checking parser is accepting invalid function
                    declaration in eval, leading to crash when reprising
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: oliver at apple.com
                CC: ggaren at apple.com, sbarati at apple.com

Found by fuzzing:
eval('-function("\udde3o"=1}')

There are many ways in which this is syntactically wrong, so it's unclear how it gets through the syntax checker at all

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