Skip to content
Commit 1a2a47b8 authored by Pietro Borrello's avatar Pietro Borrello Committed by Greg Kroah-Hartman
Browse files

HID: betop: check shape of output reports



[ Upstream commit 3782c0d6 ]

betopff_init() only checks the total sum of the report counts for each
report field to be at least 4, but hid_betopff_play() expects 4 report
fields.
A device advertising an output report with one field and 4 report counts
would pass the check but crash the kernel with a NULL pointer dereference
in hid_betopff_play().

Fixes: 52cd7785 ("HID: betop: add drivers/hid/hid-betopff.c")
Signed-off-by: default avatarPietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent b2a73097
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment