Bluetooth: Fix out of scope variable access in hci_sock_cmsg()
The pointer data can point to the variable ctv.
Access to data happens when ctv is already out of scope.
Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 688cfeb..38f08f6 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -329,6 +329,9 @@
}
if (mask & HCI_CMSG_TSTAMP) {
+#ifdef CONFIG_COMPAT
+ struct compat_timeval ctv;
+#endif
struct timeval tv;
void *data;
int len;
@@ -339,7 +342,6 @@
len = sizeof(tv);
#ifdef CONFIG_COMPAT
if (msg->msg_flags & MSG_CMSG_COMPAT) {
- struct compat_timeval ctv;
ctv.tv_sec = tv.tv_sec;
ctv.tv_usec = tv.tv_usec;
data = &ctv;