From ea2be0ca6913d5d510e91f406d295bd4d3f184aa Mon Sep 17 00:00:00 2001 From: Sriram R Date: Thu, 8 Dec 2022 09:30:50 +0530 Subject: [PATCH] mac80211: Fix MLO address translation for multiple bss case [ Upstream commit fa22b51ace8aa106267636f36170e940e676809c ] When multiple interfaces are present in the local interface list, new skb copy is taken before rx processing except for the first interface. The address translation happens each time only on the original skb since the hdr pointer is not updated properly to the newly created skb. As a result frames start to drop in userspace when address based checks or search fails. Signed-off-by: Sriram R Link: https://lore.kernel.org/r/20221208040050.25922-1-quic_srirrama@quicinc.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/rx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 3262ebb..8f0d7c6 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -4859,6 +4859,9 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, */ shwt = skb_hwtstamps(rx->skb); shwt->hwtstamp = skb_hwtstamps(skb)->hwtstamp; + + /* Update the hdr pointer to the new skb for translation below */ + hdr = (struct ieee80211_hdr *)rx->skb->data; } if (unlikely(rx->sta && rx->sta->sta.mlo)) { -- 2.7.4