diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-06-09 17:13:06 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-06-09 17:17:45 +0300 |
| commit | a9799541ca34652d9996e45f80e8e03144c12949 (patch) | |
| tree | 60c91cdb5277ba2c1c943629bbb0ce9f96c3ec81 /net | |
| parent | f5baf287f5da5641099ad5c809b3b4ebfc08506d (diff) | |
| download | linux-a9799541ca34652d9996e45f80e8e03144c12949.tar.xz | |
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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/rx.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 1bb43edd47b6..af0ef456eb0f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2240,17 +2240,15 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) sc = le16_to_cpu(hdr->seq_ctrl); frag = sc & IEEE80211_SCTL_FRAG; - if (is_multicast_ether_addr(hdr->addr1)) { - I802_DEBUG_INC(rx->local->dot11MulticastReceivedFrameCount); - goto out_no_led; - } - if (rx->sta) cache = &rx->sta->frags; if (likely(!ieee80211_has_morefrags(fc) && frag == 0)) goto out; + if (is_multicast_ether_addr(hdr->addr1)) + return RX_DROP_MONITOR; + I802_DEBUG_INC(rx->local->rx_handlers_fragments); if (skb_linearize(rx->skb)) @@ -2376,7 +2374,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) out: ieee80211_led_rx(rx->local); - out_no_led: if (rx->sta) rx->sta->rx_stats.packets++; return RX_CONTINUE; |