| From | Greg Kroah-Hartman <> | Subject | [ 16/66] mac80211: Only process mesh config header on frames that RA_MATCH | Date | Wed, 14 Nov 2012 20:10:21 -0800 |
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3.6-stable review patch. If anyone has any objections, please let me know.
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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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