From: Sriram R <quic_srirrama@xxxxxxxxxxx> [ 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 <quic_srirrama@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20221208040050.25922-1-quic_srirrama@xxxxxxxxxxx Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/mac80211/rx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index f99416d2e144..60b83cbbd5b0 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(link_sta)) { -- 2.39.0
