Re: [PATCH] ASoC: wm_adsp: Fix validation of firmware and coeff lengths

[Charles Keepax <ckeepax@opensource.cirrus.com>]

On Thu, Dec 07, 2017 at 09:19:29PM +0000, Ben Hutchings wrote:
> The checks for whether another region/block header could be present
> are subtracting the size from the current offset.  Obviously we should
> instead subtract the offset from the size.
> 
> The checks for whether the region/block data fit in the file are
> adding the data size to the current offset and header size, without
> checking for integer overflow.  Rearrange these so that overflow is
> impossible.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
> ---

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>

But you would probably be best to resend and include Mark Brown
in the To: field. He applies the Wolfson patches directly to his
tree and he might miss it since it just went to the list.

Thanks,
Charles