| 123456789101112131415161718192021222324252627282930313233343536 |
- From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- Date: Wed, 10 Feb 2016 16:08:17 +0100
- Subject: [PATCH] mac80211: fix wiphy supported_band access
- Fix wiphy supported_band access in tx radiotap parsing. In particular,
- info->band is always set to 0 (IEEE80211_BAND_2GHZ) since it has not
- assigned yet. This cause a kernel crash on 5GHz only devices.
- Move ieee80211_parse_tx_radiotap() after info->band assignment
- Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- ---
- --- a/net/mac80211/tx.c
- +++ b/net/mac80211/tx.c
- @@ -1890,10 +1890,6 @@ netdev_tx_t ieee80211_monitor_start_xmit
- info->flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
- IEEE80211_TX_CTL_INJECTED;
-
- - /* process and remove the injection radiotap header */
- - if (!ieee80211_parse_tx_radiotap(local, skb))
- - goto fail;
- -
- rcu_read_lock();
-
- /*
- @@ -1955,6 +1951,10 @@ netdev_tx_t ieee80211_monitor_start_xmit
- goto fail_rcu;
-
- info->band = chandef->chan->band;
- + /* process and remove the injection radiotap header */
- + if (!ieee80211_parse_tx_radiotap(local, skb))
- + goto fail_rcu;
- +
- ieee80211_xmit(sdata, NULL, skb);
- rcu_read_unlock();
-
|
