Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 04cbf383 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
Browse files

USB: cdc-acm: fix invalid user-pointer check 



Drop invalid user-pointer check from TIOCGSERIAL handler.

A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Acked-by: default avatarOliver Neukum <oneukum@suse.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 11f107f7

drivers/usb/class/cdc-acm.c

+0 −3
Original line number Diff line number Diff line
@@ -877,9 +877,6 @@ static int get_serial_info(struct acm *acm, struct serial_struct __user *info) 
{

	struct serial_struct tmp;



	if (!info)

		return -EINVAL;



	memset(&tmp, 0, sizeof(tmp));

	tmp.flags = ASYNC_LOW_LATENCY;

	tmp.xmit_fifo_size = acm->writesize;