[Webkit-unassigned] [Bug 181221] New: Ensure that poisoned pointers do not look like double or int32 JSValues.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jan 2 14:49:52 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=181221

            Bug ID: 181221
           Summary: Ensure that poisoned pointers do not look like double
                    or int32 JSValues.
           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: mark.lam at apple.com

This means that the top 16 bits of any poisoned bits should be 0.

<rdar://problem/36248638>

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