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From b70798906c4c85314511cf6d5cae98385861fc07 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 18 Dec 2020 19:47:17 +0100
Subject: [PATCH] mac80211: fix fast-rx encryption check
[ Upstream commit 622d3b4e39381262da7b18ca1ed1311df227de86 ]
When using WEP, the default unicast key needs to be selected, instead of
the STA PTK.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20201218184718.93650-5-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/rx.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4019,6 +4019,8 @@ void ieee80211_check_fast_rx(struct sta_
rcu_read_lock();
key = rcu_dereference(sta->ptk[sta->ptk_idx]);
+ if (!key)
+ key = rcu_dereference(sdata->default_unicast_key);
if (key) {
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
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