[PATCH 3.13.y-ckt 62/96] iwlwifi: dvm: fix D3 firmware PN programming

From: Kamal Mostafa
Date: Fri Nov 13 2015 - 17:01:43 EST

3.13.11-ckt30 -stable review patch. If anyone has any objections, please let me know.


From: Johannes Berg <johannes.berg@xxxxxxxxx>

commit 5bd166872d8f99f156fac191299d24f828bb2348 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@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
drivers/net/wireless/iwlwifi/dvm/lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index 9f2ea1e..b884fef 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -1023,7 +1023,7 @@ static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
u8 *pn = seq.ccmp.pn;

ieee80211_get_key_rx_seq(key, i, &seq);
- aes_sc->pn = cpu_to_le64(
+ aes_sc[i].pn = cpu_to_le64(
(u64)pn[5] |
((u64)pn[4] << 8) |
((u64)pn[3] << 16) |

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