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Commit 8e0ceff6 authored by Benjamin Tissoires's avatar Benjamin Tissoires Committed by Greg Kroah-Hartman
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HID: bigbenff: prevent null pointer dereference 



commit 918aa1ef104d286d16b9e7ef139a463ac7a296f0 upstream.

When emulating the device through uhid, there is a chance we don't have
output reports and so report_field is null.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-3-benjamin.tissoires@redhat.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 31520ec1

drivers/hid/hid-bigbenff.c

+1 −1
Original line number Diff line number Diff line
@@ -191,7 +191,7 @@ static void bigben_worker(struct work_struct *work) 
		struct bigben_device, worker);

	struct hid_field *report_field = bigben->report->field[0];



	if (bigben->removed)

	if (bigben->removed || !report_field)

		return;



	if (bigben->work_led) {