From: Dan Carpenter <dan.carpenter@oracle.com>
To: Luca Coelho <luciano.coelho@intel.com>,
Johannes Berg <johannes.berg@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
Mordechay Goodstein <mordechay.goodstein@intel.com>,
Sara Sharon <sara.sharon@intel.com>,
Naftali Goldstein <naftali.goldstein@intel.com>,
Dan Halperin <Dan1.Halperin@intel.com>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH 1/2] iwlwifi: mvm: d3: Fix off by ones in iwl_mvm_wowlan_get_rsc_v5_data()
Date: Tue, 31 Aug 2021 11:18:02 +0300 [thread overview]
Message-ID: <20210831081802.GA9846@kili> (raw)
These should be >= ARRAY_SIZE() instead of > ARRAY_SIZE() to prevent an
out of bounds write on the next line.
Fixes: 79e561f0f05a ("iwlwifi: mvm: d3: implement RSC command version 5")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 0e97d5e6c644..6e3a63a5a75c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -360,11 +360,11 @@ static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
if (sta) {
rsc = data->rsc->ucast_rsc;
} else {
- if (WARN_ON(data->gtks > ARRAY_SIZE(data->gtk_ids)))
+ if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
return;
data->gtk_ids[data->gtks] = key->keyidx;
rsc = data->rsc->mcast_rsc[data->gtks % 2];
- if (WARN_ON(key->keyidx >
+ if (WARN_ON(key->keyidx >=
ARRAY_SIZE(data->rsc->mcast_key_id_map)))
return;
data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
--
2.20.1
next reply other threads:[~2021-08-31 8:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-31 8:18 Dan Carpenter [this message]
2021-08-31 8:18 ` [PATCH 2/2] iwlwifi: mvm: d3: missing unlock in iwl_mvm_wowlan_program_keys() Dan Carpenter
2021-09-17 6:24 ` Coelho, Luciano
2021-09-16 17:05 ` [PATCH 1/2] iwlwifi: mvm: d3: Fix off by ones in iwl_mvm_wowlan_get_rsc_v5_data() Kalle Valo
2021-09-17 6:25 ` Coelho, Luciano
2021-09-17 6:23 ` Coelho, Luciano
2021-09-19 14:34 ` Kalle Valo
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