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Bluetooth: hci_sock: fix endian bug in hci_sock_setsockopt()

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This copies a u16 into the high bits of an int, which works on a big
endian system but not on a little endian system.

Fixes: 09572fca72 ("Bluetooth: hci_sock: Add support for BT_{SND,RCV}BUF")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Dan Carpenter 2022-01-07 10:17:27 +03:00 • committed by Marcel Holtmann
parent 2b70d4f9b2
commit b9f9dbad0b
1 changed files with 3 additions and 2 deletions
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5
net/bluetooth/hci_sock.c
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@ -1911,7 +1911,8 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
sockptr_t optval, unsigned int len)
{
struct sock *sk = sock->sk;
int err = 0, opt = 0;
int err = 0;
u16 opt;
BT_DBG("sk %p, opt %d", sk, optname);
@ -1937,7 +1938,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
goto done;
}
if (copy_from_sockptr(&opt, optval, sizeof(u16))) {
if (copy_from_sockptr(&opt, optval, sizeof(opt))) {
err = -EFAULT;
break;
}