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authorIlan Peer2017-01-16 14:07:03 +0100
committerLuca Coelho2017-02-08 16:54:23 +0100
commitcd4d23c1ea9bb3769f2859b3b7b9ef24355bcba4 (patch)
treea676262d0aa066076814296d5bdf9b3d88d66d73 /drivers/net
parentiwlwifi: mvm: avoid race condition in ADD_STA. (diff)
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iwlwifi: mvm: Fix removal of IGTK
When removing an IGTK, iwl_mvm_send_sta_igtk() was called before station ID was retrieved, so the function was invoked with an invalid station ID. Fix this by first getting the station ID. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=192411 Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/sta.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 1bad933b3ad4..c35fabdf85da 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -3047,6 +3047,11 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
/* Get the station from the mvm local station table */
mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta);
+ if (!mvm_sta) {
+ IWL_ERR(mvm, "Failed to find station\n");
+ return -EINVAL;
+ }
+ sta_id = mvm_sta->sta_id;
IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n",
keyconf->keyidx, sta_id);
@@ -3074,8 +3079,6 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
return 0;
}
- sta_id = mvm_sta->sta_id;
-
ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast);
if (ret)
return ret;