| From | Greg Kroah-Hartman <> | Subject | [ 17/66] mac80211: dont inspect Sequence Control field on control frames | Date | Wed, 14 Nov 2012 20:10:22 -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 f7fbf70ee9db6da6033ae50d100e017ac1f26555 upstream.
Per IEEE Std. 802.11-2012, Sec 8.2.4.4.1, the sequence Control field is not present in control frames. We noticed this problem when processing Block Ack Requests.
Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Javier Lopez <jlopex@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/mac80211/rx.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1422,6 +1422,10 @@ ieee80211_rx_h_defragment(struct ieee802 hdr = (struct ieee80211_hdr *)rx->skb->data; fc = hdr->frame_control; + + if (ieee80211_is_ctl(fc)) + return RX_CONTINUE; + sc = le16_to_cpu(hdr->seq_ctrl); frag = sc & IEEE80211_SCTL_FRAG;
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