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Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU

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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>
This commit is contained in:
Amadeusz Sławiński 2016-07-14 10:50:23 +02:00 committed by Greg Kroah-Hartman
parent 663c26074f
commit 5c93b99d27
1 changed files with 1 additions and 1 deletions
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2
net/bluetooth/l2cap_sock.c
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@ -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;
}