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- From 4f740b73749a855452f283909401139692633600 Mon Sep 17 00:00:00 2001
- From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?=
- <amadeusz.slawinski@tieto.com>
- Date: Thu, 14 Jul 2016 10:50:23 +0200
- Subject: [PATCH] Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- commit 23bc6ab0a0912146fd674a0becc758c3162baabc upstream.
- 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>
- Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- ---
- net/bluetooth/l2cap_sock.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
- --- a/net/bluetooth/l2cap_sock.c
- +++ b/net/bluetooth/l2cap_sock.c
- @@ -817,7 +817,7 @@ static int l2cap_sock_setsockopt(struct
- break;
- }
-
- - if (get_user(opt, (u32 __user *) optval)) {
- + if (get_user(opt, (u16 __user *) optval)) {
- err = -EFAULT;
- break;
- }
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