Bluetooth: Add BUILD_BUG_ON for size of struct sockaddr_l2

This adds an extra check for ensuring that the size of sockaddr_l2
does not grow larger than sockaddr.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f65caf41953f..20206cd3acbc 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1614,6 +1614,8 @@ int __init l2cap_init_sockets(void)
 {
         int err;
 
+        BUILD_BUG_ON(sizeof(struct sockaddr_l2) > sizeof(struct sockaddr));
+
         err = proto_register(&l2cap_proto, 0);
         if (err < 0)
                 return err;