diff options
| author | Javier Cardona <javier@cozybit.com> | 2012-10-25 11:10:18 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 13:14:20 -0800 |
| commit | 6f8acfdc74e6b117623f84de77c4822656f95c53 (patch) | |
| tree | 908c9f3f4b5aaacb19a445923e93a8e661e2e12a | |
| parent | 4bdd5ed8d955d712e77bbabb42e9a3c4c50a47df (diff) | |
mac80211: don't inspect Sequence Control field on control frames
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>
| -rw-r--r-- | net/mac80211/rx.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 667f5590576..10437a1fa0f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1352,6 +1352,10 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) 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; |