Commit 23bc6ab0 authored Jul 14, 2016 by Amadeusz Sławiński Committed by Marcel Holtmann Jul 17, 2016

Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU



When we retrieve imtu value from userspace we should use 16 bit pointer
cast instead of 32 as it's defined that way in headers. Fixes setsockopt
calls on big-endian platforms.

Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org

parent 4360fa22

net/bluetooth/l2cap_sock.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
		break;
		}

		if (get_user(opt, (u32 __user *) optval)) {
		if (get_user(opt, (u16 __user *) optval)) {
		err = -EFAULT;
		break;
		}