4.9-stable patches

[thirdparty/kernel/stable-queue.git] / releases / 3.14.57 / iwlwifi-mvm-fix-d3-firmware-pn-programming.patch

From 2cf5eb3ab7bb7f2e3a70edcef236cd62c87db030 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 15 Sep 2015 14:36:09 +0200
Subject: iwlwifi: mvm: fix D3 firmware PN programming

From: Johannes Berg <johannes.berg@intel.com>

commit 2cf5eb3ab7bb7f2e3a70edcef236cd62c87db030 upstream.

The code to send the RX PN data (for each TID) to the firmware
has a devastating bug: it overwrites the data for TID 0 with
all the TID data, leaving the remaining TIDs zeroed. This will
allow replays to actually be accepted by the firmware, which
could allow waking up the system.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/iwlwifi/mvm/d3.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -297,12 +297,12 @@ static void iwl_mvm_wowlan_program_keys(
 			u8 *pn = seq.ccmp.pn;
 
 			ieee80211_get_key_rx_seq(key, i, &seq);
-			aes_sc->pn = cpu_to_le64((u64)pn[5] |
-						 ((u64)pn[4] << 8) |
-						 ((u64)pn[3] << 16) |
-						 ((u64)pn[2] << 24) |
-						 ((u64)pn[1] << 32) |
-						 ((u64)pn[0] << 40));
+			aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
+						   ((u64)pn[4] << 8) |
+						   ((u64)pn[3] << 16) |
+						   ((u64)pn[2] << 24) |
+						   ((u64)pn[1] << 32) |
+						   ((u64)pn[0] << 40));
 		}
 		data->use_rsc_tsc = true;
 		break;