| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 15/43] mac80211: fix fast-rx encryption check | Date | Mon, 8 Feb 2021 16:00:41 +0100 |
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From: Felix Fietkau <nbd@nbd.name>
[ 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(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 9be82ed02e0e5..c38d68131d02e 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3802,6 +3802,8 @@ void ieee80211_check_fast_rx(struct sta_info *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: -- 2.27.0
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