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authorAvraham Stern <avraham.stern@intel.com>2022-05-17 12:05:13 +0300
committerJohannes Berg <johannes.berg@intel.com>2022-05-18 12:54:09 +0200
commit55cf10488d7a9fa1b1b473a5e44a80666932e094 (patch)
treeee64b57ab5b54588c4a694eb1f45df0d5c1e08e6 /drivers/net/wireless/intel/iwlwifi/mei
parent98c0de7b26a1872f000ffae5661d2709b1d01932 (diff)
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iwlwifi: mei: clear the sap data header before sending
The SAP data header has some fields that are marked as reserved but are actually in use by CSME. Clear those fields before sending the data to avoid having random values in those fields. Cc: stable@vger.kernel.org Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20220517120045.8dd3423cf683.I02976028eaa6aab395cb2e701fa7127212762eb7@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mei')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mei/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mei/main.c b/drivers/net/wireless/intel/iwlwifi/mei/main.c
index b4f45234cfc8..3d2eb15a9662 100644
--- a/drivers/net/wireless/intel/iwlwifi/mei/main.c
+++ b/drivers/net/wireless/intel/iwlwifi/mei/main.c
@@ -493,6 +493,7 @@ void iwl_mei_add_data_to_ring(struct sk_buff *skb, bool cb_tx)
if (cb_tx) {
struct iwl_sap_cb_data *cb_hdr = skb_push(skb, sizeof(*cb_hdr));
+ memset(cb_hdr, 0, sizeof(*cb_hdr));
cb_hdr->hdr.type = cpu_to_le16(SAP_MSG_CB_DATA_PACKET);
cb_hdr->hdr.len = cpu_to_le16(skb->len - sizeof(cb_hdr->hdr));
cb_hdr->hdr.seq_num = cpu_to_le32(atomic_inc_return(&mei->sap_seq_no));