The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 7035a082348acf1d43ffb9ff735899f8e3863f8f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025071231-projector-jubilance-2909@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 7035a082348acf1d43ffb9ff735899f8e3863f8f Mon Sep 17 00:00:00 2001 From: Deren Wu deren.wu@mediatek.com Date: Sun, 25 May 2025 14:11:22 +0800 Subject: [PATCH] wifi: mt76: mt7921: prevent decap offload config before STA initialization

The decap offload configuration should only be applied after the STA has been successfully initialized. Attempting to configure it earlier can lead to corruption of the MAC configuration in the chip's hardware state.

Add an early check for `msta->deflink.wcid.sta` to ensure the station peer is properly initialized before proceeding with decapsulation offload configuration.

Cc: stable@vger.kernel.org Fixes: 24299fc869f7 ("mt76: mt7921: enable rx header traslation offload") Signed-off-by: Deren Wu deren.wu@mediatek.com Link: https://patch.msgid.link/f23a72ba7a3c1ad38ba9e13bb54ef21d6ef44ffb.1748149855... Signed-off-by: Felix Fietkau nbd@nbd.name

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c index 1fffa43379b2..77f73ae1d7ec 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c @@ -1180,6 +1180,9 @@ static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; struct mt792x_dev *dev = mt792x_hw_dev(hw);

+ if (!msta->deflink.wcid.sta) + return; + mt792x_mutex_acquire(dev);

if (enabled)