svn commit: r218685 - head/sys/dev/acpica

John Baldwin jhb at freebsd.org
Mon Feb 14 18:34:04 UTC 2011


On Monday, February 14, 2011 12:20:20 pm Matthew D Fleming wrote:
> Author: mdf
> Date: Mon Feb 14 17:20:20 2011
> New Revision: 218685
> URL: http://svn.freebsd.org/changeset/base/218685
> 
> Log:
>   Prevent reading from the ACPI_RESOURCE past its actual end.  For
>   paranoia limit to the size of the ACPI_RESOURCE as well.

I think in practice that len would never be > sizeof(ACPI_RESOURCE).

You could probably get by with using a KASSERT() instead:

	KASSERT(res->Length <= sizeof(ACPI_RESOURCE), "resource too large"));
	bcopy(res, req->acpi_res, res->Length);

-- 
John Baldwin


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