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wifi: iwlwifi: mvm: don't set replay counters to 0xff

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[ Upstream commit d5bd4041cd ]

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: 79e561f0f0 ("iwlwifi: mvm: d3: implement RSC command version 5")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.462101146fef.I10f3855b99417af4247cff04af78dcbc6cb75c9c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg 2024-02-06 18:02:09 +02:00 committed by Sasha Levin
parent b4f1b0b3b9
commit 85074e3394
1 changed files with 1 additions and 3 deletions
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4
drivers/net/wireless/intel/iwlwifi/mvm/d3.c
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@ -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] =
IWL_MCAST_KEY_MAP_INVALID;