Hi Filip, > Structures "l2cap_conninfo" and "rfcomm_conninfo" have one padding > byte each. This byte in "cinfo" is copied to userspace uninitialized. > > patch no.1: > -- cut -- > --- a/net/bluetooth/l2cap_sock.c 2011-05-04 03:59:13.000000000 +0100 > +++ b/net/bluetooth/l2cap_sock.c 2011-05-08 18:57:20.000000000 +0100 > @@ -446,6 +446,7 @@ static int l2cap_sock_getsockopt_old(str > break; > } > > + memset(&cinfo, 0, sizeof(cinfo)); > cinfo.hci_handle = l2cap_pi(sk)->conn->hcon->handle; > memcpy(cinfo.dev_class, l2cap_pi(sk)->conn->hcon->dev_class, 3); nice catch, but please create a patch via git format-patch and don't forget a Signed-off-by line. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html