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mac80211: drop multicast fragments
These are not permitted by the spec, just drop them. Link: https://lore.kernel.org/r/20210609161305.23def022b750.Ibd6dd3cdce573dae262fcdc47f8ac52b883a9c50@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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1 changed files with 3 additions and 6 deletions
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@ -2240,17 +2240,15 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
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sc = le16_to_cpu(hdr->seq_ctrl);
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frag = sc & IEEE80211_SCTL_FRAG;
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if (is_multicast_ether_addr(hdr->addr1)) {
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I802_DEBUG_INC(rx->local->dot11MulticastReceivedFrameCount);
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goto out_no_led;
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}
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if (rx->sta)
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cache = &rx->sta->frags;
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if (likely(!ieee80211_has_morefrags(fc) && frag == 0))
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goto out;
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if (is_multicast_ether_addr(hdr->addr1))
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return RX_DROP_MONITOR;
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I802_DEBUG_INC(rx->local->rx_handlers_fragments);
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if (skb_linearize(rx->skb))
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@ -2376,7 +2374,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
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out:
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ieee80211_led_rx(rx->local);
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out_no_led:
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if (rx->sta)
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rx->sta->rx_stats.packets++;
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return RX_CONTINUE;
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