[Webkit-unassigned] [Bug 102293] New: SerializedScriptValue::toWireString() fails for odd-length serialized data

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=102293

           Summary: SerializedScriptValue::toWireString() fails for
                    odd-length serialized data
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: michael at 68k.org


SerializedScriptValue fails to produce a wire string representation value which can be deserialized for odd-length serialized data. The problem is that CloneDeserializer::toWireString() divides value.size() by sizeof(UChar) which omits the final byte of an odd-length buffer producing a wire representation which cannot be deserialized. Appending a zero-valued byte to an odd-length string is one way to fix this problem.

The V8 implementation of SerializedScriptValue avoids this problem by using String as its internal representation and rounding up to an even number of bytes in Writer::ensureSpace(), thus ensuring that the internal representation is always an even number of bytes.

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