[Webkit-unassigned] [Bug 61404] New: [filesystem] DOMFileSystemBase assumes there's only one filesystem

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=61404

           Summary: [filesystem] DOMFileSystemBase assumes there's only
                    one filesystem
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ericu at chromium.org
                CC: michaeln at google.com, kinuko at chromium.org,
                    adamk at chromium.org, dmikurube at chromium.org


In verifyAndGetDestinationPathForCopyOrMove, we check to make sure you're not moving a directory into its child.  However, we just do a pure path check.  If the two paths aren't in the same filesystem, they're not directly comparable, and we should skip the check.  This prevents e.g. moving temporary file /foo/bar into the persistent root, as the root is the parent of every path.

I'm CCing folks familiar with the filesystem code, in case they have time to grab this.  If not, I'll get to it when I can.

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