lkml.org 
[lkml]   [2012]   [Nov]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[ 17/66] mac80211: dont inspect Sequence Control field on control frames
Date
3.6-stable review patch.  If anyone has any objections, please let me know.

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

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;




\
 
 \ /
  Last update: 2012-11-15 06:23    [W:0.260 / U:0.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site