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wifi: mt76: mt7921: fix using incorrect group cipher after disconnection.

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[ Upstream commit aa566ac6b7272e7ea5359cb682bdca36d2fc7e73 ]

To avoid incorrect cipher after disconnection, we should
do the key deletion process in this case.

Fixes: e6db67fa87 ("wifi: mt76: ignore key disable commands")
Signed-off-by: Michael Lo <michael.lo@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Tested-by: David Ruth <druth@chromium.org>
Reviewed-by: David Ruth <druth@chromium.org>
Link: https://patch.msgid.link/20240801024335.12981-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michael Lo
2024-08-01 10:43:35 +08:00
committed by Greg Kroah-Hartman
parent 5d60977e36
commit fc2b9b4ea2
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/mediatek/mt76/mt7921/main.c
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@@ -469,7 +469,13 @@ static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
} else { } else {
if (idx == *wcid_keyidx) if (idx == *wcid_keyidx)
*wcid_keyidx = -1; *wcid_keyidx = -1;
goto out;
/* For security issue we don't trigger the key deletion when
* reassociating. But we should trigger the deletion process
* to avoid using incorrect cipher after disconnection,
*/
if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc)
goto out;
} }
mt76_wcid_key_setup(&dev->mt76, wcid, key); mt76_wcid_key_setup(&dev->mt76, wcid, key);