[CVE-2011-4330] hfs malicious filesystem crash

[Andy Whitcroft]

CVE-2011-4330
	On a corrupted hfs file system the ->len field could be wrong
	leading to a buffer overflow.

Fixes for this have hit oneiric and precise via mainline and stable.
Following this email is a patch for hardy, lucid, lucid/fsl-imx51,
maverick, maverick/ti-omap4, natty, and natty/ti-omap4.  This is a
direct cherry-pick from mainline.

Proposing for hardy, lucid, lucid/fsl-imx51, maverick, maverick/ti-omap4,
natty, and natty/ti-omap4.

-apw