From 555cb715be8ef98b8ec362b23dfc254d432a35b1 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Wed, 24 Oct 2012 12:43:30 -0700 Subject: [PATCH] mac80211: Only process mesh config header on frames that RA_MATCH Doing otherwise is wrong, and may wreak havoc on the mpp tables, specially if the frame is encrypted. Cc: stable@vger.kernel.org Reported-by: Chaoxing Lin Signed-off-by: Javier Cardona Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 61c621e9273f..1222127de9be 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1897,7 +1897,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) mesh_rmc_check(hdr->addr3, mesh_hdr, rx->sdata)) return RX_DROP_MONITOR; - if (!ieee80211_is_data(hdr->frame_control)) + if (!ieee80211_is_data(hdr->frame_control) || + !(status->rx_flags & IEEE80211_RX_RA_MATCH)) return RX_CONTINUE; if (!mesh_hdr->ttl) @@ -1941,9 +1942,6 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) } skb_set_queue_mapping(skb, q); - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - goto out; - if (!--mesh_hdr->ttl) { IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_ttl); return RX_DROP_MONITOR; -- 2.20.1