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mac80211: drop robust management frames from unknown TA
commit 588f7d39b3
upstream.
When receiving a robust management frame, drop it if we don't have
rx->sta since then we don't have a security association and thus
couldn't possibly validate the frame.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 0 deletions
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@ -3589,6 +3589,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
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case NL80211_IFTYPE_STATION:
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if (!bssid && !sdata->u.mgd.use_4addr)
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return false;
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if (ieee80211_is_robust_mgmt_frame(skb) && !rx->sta)
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return false;
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if (multicast)
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return true;
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return ether_addr_equal(sdata->vif.addr, hdr->addr1);
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