HID: roccat: ryos: reject short special reports

The raw event callback runs before HID core validates and zero-pads the
report.  It reads the report number without checking the received length
and passes matching data to roccat_report_event(), which copies a complete
struct ryos_report_special.  A truncated report can therefore cause an
out-of-bounds read and expose adjacent data through the Roccat character
device.

Require a complete special report before inspecting or forwarding it.
Commit 47669bec44fe ("HID: asus: refactor the two workqueues and init
sequence") added the same kind of raw-event length validation to hid-asus.

Fixes: 6f3a19360545 ("HID: roccat: add support for Ryos MK keyboards")
Cc: stable@vger.kernel.org
Signed-off-by: Jiale Yao <yaojiale02@163.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

0 files changed, 0 insertions, 0 deletions