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-rw-r--r--net/mac80211/key.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index c3476de4b14d..fba5de5ba37b 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -433,13 +433,25 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
int idx;
int ret = 0;
bool defunikey, defmultikey, defmgmtkey, defbeaconkey;
+ bool is_wep;
/* caller must provide at least one old/new */
if (WARN_ON(!new && !old))
return 0;
- if (new)
+ if (new) {
+ idx = new->conf.keyidx;
list_add_tail_rcu(&new->list, &sdata->key_list);
+ is_wep = new->conf.cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ new->conf.cipher == WLAN_CIPHER_SUITE_WEP104;
+ } else {
+ idx = old->conf.keyidx;
+ is_wep = old->conf.cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ old->conf.cipher == WLAN_CIPHER_SUITE_WEP104;
+ }
+
+ if ((is_wep || pairwise) && idx >= NUM_DEFAULT_KEYS)
+ return -EINVAL;
WARN_ON(new && old && new->conf.keyidx != old->conf.keyidx);
@@ -451,8 +463,6 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
}
if (old) {
- idx = old->conf.keyidx;
-
if (old->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
ieee80211_key_disable_hw_accel(old);
@@ -460,8 +470,6 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
ret = ieee80211_key_enable_hw_accel(new);
}
} else {
- /* new must be provided in case old is not */
- idx = new->conf.keyidx;
if (!new->local->wowlan)
ret = ieee80211_key_enable_hw_accel(new);
}