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From: Miri Korenblit <>
Cc:, Johannes Berg <>
Subject: [PATCH 06/11] wifi: iwlwifi: mvm: don't set replay counters to 0xff
Date: Tue,  6 Feb 2024 18:02:09 +0200	[thread overview]
Message-ID: <20240206175739.462101146fef.I10f3855b99417af4247cff04af78dcbc6cb75c9c@changeid> (raw)
In-Reply-To: <>

From: Johannes Berg <>

The firmware (later) actually uses the values even for keys
that are invalid as far as the host is concerned, later in
rekeying, and then only sets the low 48 bits since the PNs
are only 48 bits over the air. It does, however, compare the
full 64 bits later, obviously causing problems.

Remove the memset and use kzalloc instead to avoid any old
heap data leaking to the firmware. We already init all the
other fields in the struct anyway. This leaves the data set
to zero for any unused fields, so the firmware can look at
them safely even if they're not used right now.

Fixes: 79e561f0f05a ("iwlwifi: mvm: d3: implement RSC command version 5")
Signed-off-by: Johannes Berg <>
Signed-off-by: Miri Korenblit <>
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 5bc08c1d207a..e1c77276557d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -461,12 +461,10 @@ static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
 		struct wowlan_key_rsc_v5_data data = {};
 		int i;
-		data.rsc = kmalloc(sizeof(*data.rsc), GFP_KERNEL);
+		data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL);
 		if (!data.rsc)
 			return -ENOMEM;
-		memset(data.rsc, 0xff, sizeof(*data.rsc));
 		for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
 			data.rsc->mcast_key_id_map[i] =

  parent reply	other threads:[~2024-02-06 16:02 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-06 16:02 [PATCH 00/11] wifi: iwlwifi: updates - 2024-02-06 Miri Korenblit
2024-02-06 16:02 ` [PATCH 01/11] wifi: iwlwifi: mvm: fix a crash when we run out of stations Miri Korenblit
2024-02-06 16:02 ` [PATCH 02/11] wifi: iwlwifi: fw: allow vmalloc for PNVM image Miri Korenblit
2024-02-06 16:02 ` [PATCH 03/11] wifi: iwlwifi: mvm: don't set the MFP flag for the GTK Miri Korenblit
2024-02-06 16:02 ` [PATCH 04/11] wifi: iwlwifi: mvm: don't send the smart fifo command if not needed Miri Korenblit
2024-02-06 16:02 ` [PATCH 05/11] wifi: iwlwifi: pcie: Add new PCI device id and CNVI Miri Korenblit
2024-02-06 16:02 ` Miri Korenblit [this message]
2024-02-06 16:02 ` [PATCH 07/11] wifi: iwlwifi: mvm: remove flags for enable/disable beacon filter Miri Korenblit
2024-02-06 16:02 ` [PATCH 08/11] wifi: iwlwifi: mvm: show skb_mac_gso_segment() failure reason Miri Korenblit
2024-02-06 16:02 ` [PATCH 09/11] wifi: iwlwifi: iwlmvm: handle unprotected deauth/disassoc in d3 Miri Korenblit
2024-02-07  3:39   ` kernel test robot
2024-02-07  6:27   ` kernel test robot
2024-02-06 16:02 ` [PATCH 10/11] wifi: iwlwifi: mvm: move BA notif messages before action Miri Korenblit
2024-02-06 16:02 ` [PATCH 11/11] wifi: iwlwifi: queue: improve warning for no skb in reclaim Miri Korenblit

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