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cfg80211: disallow shared key authentication with key index 4

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Key index 4 can only be used for an IGTK, so the range checks
for shared key authentication should treat 4 as an error, fix
that in the code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2016-09-13 16:25:58 +02:00
parent 4854f175c3
commit b6b5555bc8
2 changed files with 2 additions and 2 deletions
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2
net/wireless/nl80211.c
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@@ -7388,7 +7388,7 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
(key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
key.p.key_len != WLAN_KEY_LEN_WEP104))
return -EINVAL;
if (key.idx > 4)
if (key.idx > 3)
return -EINVAL;
} else {
key.p.key_len = 0;