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

On Wed, Apr 22, 2020 at 12:24:17PM +0100, Colin King wrote:

From: Colin Ian King colin.king@canonical.com

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