Re: [PATCH] ASoC: SOF: ensure all fields in header are zero'd before copying back to userspace

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

On Wed, Apr 22, 2020 at 12:24:17PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> Field header.tlv is uninitialized and being copied back to userspace
        ^^^^^^^^^^
header.tlv is a zero element array so it doens't have any stack data.

> and hence leaking data from the stack to userspace.  Fix this by
> ensuring the header structure is zero'd.

regards,
dan carpenter