diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-06-09 17:13:06 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2021-06-30 15:47:20 +0300 |
| commit | c2813d1966ba45ec205e57e94c53cd07805be2e1 (patch) | |
| tree | 34be3bca53dac73a3ef891f854a8e660b8f4a248 /net/mac80211 | |
| parent | fedc4d4f548ce538d18ec87a63d5a618dc730117 (diff) | |
| download | linux-c2813d1966ba45ec205e57e94c53cd07805be2e1.tar.xz | |
mac80211: drop multicast fragments
[ Upstream commit a9799541ca34652d9996e45f80e8e03144c12949 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/mac80211')
| -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 ef8ff0bc66f1..38b5695c2a0c 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2250,17 +2250,15 @@ 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)) @@ -2386,7 +2384,6 @@ 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; |