package/kernel/mac80211/patches/subsys/371-mac80211-fix-fast-rx-encryption-check.patch

   1 From b70798906c4c85314511cf6d5cae98385861fc07 Mon Sep 17 00:00:00 2001
   2 From: Felix Fietkau <nbd@nbd.name>
   3 Date: Fri, 18 Dec 2020 19:47:17 +0100
   4 Subject: [PATCH] mac80211: fix fast-rx encryption check
   5
   6 [ Upstream commit 622d3b4e39381262da7b18ca1ed1311df227de86 ]
   7
   8 When using WEP, the default unicast key needs to be selected, instead of
   9 the STA PTK.
  10
  11 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  12 Link: https://lore.kernel.org/r/20201218184718.93650-5-nbd@nbd.name
  13 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
  14 Signed-off-by: Sasha Levin <sashal@kernel.org>
  15 ---
  16  net/mac80211/rx.c | 2 ++
  17  1 file changed, 2 insertions(+)
  18
  19 --- a/net/mac80211/rx.c
  20 +++ b/net/mac80211/rx.c
  21 @@ -4019,6 +4019,8 @@ void ieee80211_check_fast_rx(struct sta_
  22
  23         rcu_read_lock();
  24         key = rcu_dereference(sta->ptk[sta->ptk_idx]);
  25 +       if (!key)
  26 +               key = rcu_dereference(sdata->default_unicast_key);
  27         if (key) {
  28                 switch (key->conf.cipher) {
  29                 case WLAN_CIPHER_SUITE_TKIP: