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From: Remi Pommarel <repk@triplefau.lt>
Date: Thu, 17 Jul 2025 17:45:28 +0200
Subject: [PATCH] wifi: mac80211: Check 802.11 encaps offloading in
ieee80211_tx_h_select_key()
With 802.11 encapsulation offloading, ieee80211_tx_h_select_key() is
called on 802.3 frames. In that case do not try to use skb data as
valid 802.11 headers.
Reported-by: Bert Karwatzki <spasswolf@web.de>
Closes: https://lore.kernel.org/linux-wireless/20250410215527.3001-1-spasswolf@web.de
Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue")
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/1af4b5b903a5fca5ebe67333d5854f93b2be5abe.1752765971.git.repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -622,6 +622,12 @@ ieee80211_tx_h_select_key(struct ieee802
else
tx->key = NULL;
+ if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
+ if (tx->key && tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ info->control.hw_key = &tx->key->conf;
+ return TX_CONTINUE;
+ }
+
if (tx->key) {
bool skip_hw = false;
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