Suren Baghdasaryan e285d5bfb7 NFC: Fix the number of pipes
According to ETSI TS 102 622 specification chapter 4.4 pipe identifier
is 7 bits long which allows for 128 unique pipe IDs. Because
NFC_HCI_MAX_PIPES is used as the number of pipes supported and not
as the max pipe ID, its value should be 128 instead of 127.

nfc_hci_recv_from_llc extracts pipe ID from packet header using
NFC_HCI_FRAGMENT(0x7F) mask which allows for pipe ID value of 127.
Same happens when NCI_HCP_MSG_GET_PIPE() is being used. With
pipes array having only 127 elements and pipe ID of 127 the OOB memory
access will result.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Allen Pais <allen.pais@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-18 19:55:01 -07:00
..
2018-01-19 14:02:12 -05:00
2018-09-18 19:55:01 -07:00
2018-08-21 12:45:45 -07:00
2018-05-16 07:23:35 +02:00
2018-07-30 09:10:25 -07:00
2016-07-08 12:20:57 +02:00
2016-04-25 16:44:27 -04:00
2016-04-25 16:44:27 -04:00
2018-07-18 15:08:31 -07:00
2018-02-28 11:43:28 -05:00
2018-04-23 10:21:24 -04:00
2017-10-11 09:49:34 +02:00
2017-11-16 10:49:00 +09:00
2017-12-11 14:10:06 -05:00
2016-04-27 22:48:25 -04:00
2017-12-15 12:34:00 -05:00
2016-08-17 19:36:23 -04:00
2018-06-18 22:40:32 +02:00
2016-10-03 02:00:22 -04:00
2018-04-07 22:32:31 -04:00
2016-07-08 12:20:57 +02:00
2017-11-08 16:12:33 +09:00
2018-05-16 07:23:35 +02:00
2017-12-05 14:37:13 -05:00
2018-05-16 07:23:35 +02:00
2018-05-31 22:48:46 -04:00
2018-06-22 13:43:27 +09:00
2018-06-22 13:43:27 +09:00
2018-08-16 14:58:07 -07:00
2018-04-17 13:53:13 -04:00