[Webkit-unassigned] [Bug 118621] New: [cairo] memory corruption with putImageData and accelerated canvas.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=118621

           Summary: [cairo] memory corruption with putImageData and
                    accelerated canvas.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://renevier.net/tmp/canvas_malloc_assert.html
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: a.renevier at samsung.com


Hi,
when calling putImageData with non 0 dx/dy parameters, I observe a memory corruption if accelerated canvas is enabled for the underlying canvas.
Launch http://renevier.net/tmp/canvas_malloc_assert.html with MiniBrowser to reproduce (make sure accelerated canvas is enabled; --enable-accelerated-2d-canvas).
I get following error on stdout:

*** glibc detected *** /home/arno/webkit/WebKit/WebKitBuild/Release/Programs/.libs/lt-WebKitWebProcess: malloc(): memory corruption: 0x08e42f00 ***

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