media: v4l2-ctrls.c/uvc: zero v4l2_event

Browse source

Control events can leak kernel memory since they do not fully zero the
event. The same code is present in both v4l2-ctrls.c and uvc_ctrl.c, so
fix both.

It appears that all other event code is properly zeroing the structure,
it's these two places.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+4f021cf3697781dbd9fb@syzkaller.appspotmail.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

...

This commit is contained in:

Hans Verkuil 2018-12-18 08:37:08 -05:00 • committed by Mauro Carvalho Chehab

parent 2a850b9413

commit f45f3f753b

2 changed files with 2 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/media/usb/uvc/uvc_ctrl.c

View file

2

drivers/media/v4l2-core/v4l2-ctrls.c

View file