This is a note to let you know that I've just added the patch titled
wifi: iwlwifi: mvm: don't drop unencrypted MCAST frames
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-iwlwifi-mvm-don-t-drop-unencrypted-mcast-frames.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9b441d4640e4820e394dd24709377c791aa472fc
Author: Ayala Beker <ayala.beker@xxxxxxxxx>
Date: Thu Apr 13 21:40:22 2023 +0300
wifi: iwlwifi: mvm: don't drop unencrypted MCAST frames
[ Upstream commit 8e5a26360cbe29b896b6758518280d41c3704d43 ]
MCAST frames are filtered out by the driver if we are not
authorized yet.
Fix it to filter out only protected frames.
Fixes: 147eb05f24e6 ("iwlwifi: mvm: always tell the firmware to accept MCAST frames in BSS")
Signed-off-by: Ayala Beker <ayala.beker@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230413213309.9cedcc27db60.I8fb7057981392660da482dd215e85c15946d3f4b@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
index 49ca1e168fc5b..eee98cebbb46a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
@@ -384,9 +384,10 @@ void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
* Don't even try to decrypt a MCAST frame that was received
* before the managed vif is authorized, we'd fail anyway.
*/
- if (vif->type == NL80211_IFTYPE_STATION &&
+ if (is_multicast_ether_addr(hdr->addr1) &&
+ vif->type == NL80211_IFTYPE_STATION &&
!mvmvif->authorized &&
- is_multicast_ether_addr(hdr->addr1)) {
+ ieee80211_has_protected(hdr->frame_control)) {
IWL_DEBUG_DROP(mvm, "MCAST before the vif is authorized\n");
kfree_skb(skb);
rcu_read_unlock();
