diff options
| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2022-01-07 10:17:27 +0300 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2022-01-07 08:41:38 +0100 |
| commit | b9f9dbad0bd1c302d357fdd327c398f51f5fc2b1 (patch) | |
| tree | 9b028292f6e2360e90655340a475c896589b587f | |
| parent | Bluetooth: L2CAP: uninitialized variables in l2cap_sock_setsockopt() (diff) | |
| download | linux-dev-b9f9dbad0bd1c302d357fdd327c398f51f5fc2b1.tar.xz linux-dev-b9f9dbad0bd1c302d357fdd327c398f51f5fc2b1.zip | |
Bluetooth: hci_sock: fix endian bug in hci_sock_setsockopt()
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: 09572fca7223 ("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>
| -rw-r--r-- | net/bluetooth/hci_sock.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 446573a12571..33b3c0ffc339 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -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; } |