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Subject[ 16/66] mac80211: Only process mesh config header on frames that RA_MATCH
Date
3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Javier Cardona <javier@cozybit.com>

commit 555cb715be8ef98b8ec362b23dfc254d432a35b1 upstream.

Doing otherwise is wrong, and may wreak havoc on the mpp tables,
specially if the frame is encrypted.

Reported-by: Chaoxing Lin <Chaoxing.Lin@ultra-3eti.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/mac80211/rx.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1857,7 +1857,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80
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)
@@ -1901,9 +1902,6 @@ ieee80211_rx_h_mesh_fwding(struct ieee80
}
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;



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