patches/kernel/0266-cw1200-prevent-speculative-execution.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: Elena Reshetova <elena.reshetova@intel.com>
   3 Date: Mon, 4 Sep 2017 13:11:50 +0300
   4 Subject: [PATCH] cw1200: prevent speculative execution
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 CVE-2017-5753
  10 CVE-2017-5715
  11
  12 Real commit text tbd
  13
  14 Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
  15 Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
  16 Signed-off-by: Andy Whitcroft <apw@canonical.com>
  17 Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
  18 (cherry picked from commit 30770297508b781f2c1e82c52f793bc4d2cb2356)
  19 Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
  20 ---
  21  drivers/net/wireless/st/cw1200/sta.c | 1 +
  22  1 file changed, 1 insertion(+)
  23
  24 diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c
  25 index a52224836a2b..bbff06a4263e 100644
  26 --- a/drivers/net/wireless/st/cw1200/sta.c
  27 +++ b/drivers/net/wireless/st/cw1200/sta.c
  28 @@ -619,6 +619,7 @@ int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
  29         mutex_lock(&priv->conf_mutex);
  30
  31         if (queue < dev->queues) {
  32 +               gmb();
  33                 old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags);
  34
  35                 WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
  36 --
  37 2.14.2
  38