diff options
| author | Avraham Stern <avraham.stern@intel.com> | 2020-10-08 18:09:48 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-10-08 20:09:39 +0300 |
| commit | bebc14db4eb7120a2c12fb08ee2ea95cdecb8042 (patch) | |
| tree | 07751c280e891936c44ee273e27142424cbb0ceb /drivers/net/wireless | |
| parent | 2c2c3647cde4755409aecc57c471d51c24f14c2a (diff) | |
| download | linux-bebc14db4eb7120a2c12fb08ee2ea95cdecb8042.tar.bz2 | |
iwlwifi: mvm: avoid possible NULL pointer dereference
When adding a PASN station, the station is added to the list only
if a TK is configured. Otherwise the station pointer should not be
used.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201008180656.b8a493c168a7.Ie9a0f9dfd9e9c58c603dd06e45151119467a7804@changeid
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c index c794612c41d5..dd3662b9a5bc 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c @@ -354,18 +354,16 @@ int iwl_mvm_ftm_respoder_add_pasn_sta(struct iwl_mvm *mvm, kfree(sta); return ret; } + + memcpy(sta->addr, addr, ETH_ALEN); + list_add_tail(&sta->list, &mvm->resp_pasn_list); } ret = iwl_mvm_ftm_responder_dyn_cfg_v3(mvm, vif, NULL, &hltk_data); - if (ret) { - if (sta) - iwl_mvm_resp_del_pasn_sta(mvm, vif, sta); - return ret; - } + if (ret && sta) + iwl_mvm_resp_del_pasn_sta(mvm, vif, sta); - memcpy(sta->addr, addr, ETH_ALEN); - list_add_tail(&sta->list, &mvm->resp_pasn_list); - return 0; + return ret; } int iwl_mvm_ftm_resp_remove_pasn_sta(struct iwl_mvm *mvm, |