From 736a80bbfda709fb3631f5f62056f250a38e5804 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 4 Jan 2018 15:51:53 +0100 Subject: mac80211: mesh: drop frames appearing to be from us If there are multiple mesh stations with the same MAC address, they will both get confused and start throwing warnings. Obviously in this case nothing can actually work anyway, so just drop frames that look like they're from ourselves early on. Reported-by: Gui Iribarren Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/mac80211') diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 70e9d2ca8bbe..4daafb07602f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3632,6 +3632,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) } return true; case NL80211_IFTYPE_MESH_POINT: + if (ether_addr_equal(sdata->vif.addr, hdr->addr2)) + return false; if (multicast) return true; return ether_addr_equal(sdata->vif.addr, hdr->addr1); -- cgit