Re: [PATCH 4.1] [media] media/vivid-osd: fix info leak in ioctl

On Mon, Jan 25, 2016 at 07:42:18PM +0900, Yuki Machida wrote:

commit eda98796aff0d9bf41094b06811f5def3b4c333c upstream.

The vivid_fb_ioctl() code fails to initialize the 16 _reserved bytes of
struct fb_vblank after the ->hcount member. Add an explicit
memset(0) before filling the structure to avoid the info leak.

This fixes CVE-2015-7884.

Signed-off-by: Salva Peiró <redacted>
Signed-off-by: Hans Verkuil <redacted>
Signed-off-by: Mauro Carvalho Chehab <redacted>
Signed-off-by: Yuki Machida <redacted>
---
 drivers/media/platform/vivid/vivid-osd.c | 1 +
 1 file changed, 1 insertion(+)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read Documentation/stable_kernel_rules.txt
for how to do this properly.

</formletter>