[Webkit-unassigned] [Bug 104955] New: Clamp values in LayoutUnit::setRawValue when SATURATED_LAYOUT_ARITHMETIC is enabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=104955

           Summary: Clamp values in LayoutUnit::setRawValue when
                    SATURATED_LAYOUT_ARITHMETIC is enabled
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eae at chromium.org
                CC: eric at webkit.org, jchaffraix at webkit.org


LayoutUnit::setRawValue(long long) currently does not clamp values and instead overflows when given a value greater than INT_MAX or less than INT_MIN. As the division operator uses the setRawValue(long long) method it can the value to overflow, even if SATURATED_LAYOUT_ARITHMETIC is enabled.

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