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Commit 5a195fa4 authored by Pietro Borrello's avatar Pietro Borrello Committed by Greg Kroah-Hartman
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hid: bigben_probe(): validate report count



[ Upstream commit b94335f899542a0da5fafc38af8edcaf90195843 ]

bigben_probe() does not validate that the output report has the
needed report values in the first field.
A malicious device registering a report with one field and a single
value causes an head OOB write in bigben_worker() when
accessing report_field->value[1] to report_field->value[7].
Use hid_validate_values() which takes care of all the needed checks.

Fixes: 256a90ed ("HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad")
Signed-off-by: default avatarPietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230211-bigben-oob-v1-1-d2849688594c@diag.uniroma1.it


Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 9f525559
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