diff options
| author | Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> | 2016-02-19 12:18:01 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-02-24 09:04:38 +0100 |
| commit | 109843b07aed8663a3c1fe9ef02c540b6ff203b4 (patch) | |
| tree | 64337640a1304b2cb5ec96981498e7df41aa05d8 /net/mac80211/tx.c | |
| parent | 2b67f944f88c29e71efdcfc4d0c21ab28fbf23ae (diff) | |
| download | linux-109843b07aed8663a3c1fe9ef02c540b6ff203b4.tar.bz2 | |
mac80211: fix wiphy supported_band access
Fix wiphy supported_band access in tx radiotap parsing introduced
in commit 5ec3aed9ba4c ("mac80211: Parse legacy and HT rate in
injected frames"). 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>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 7bb67fa9f4d2..3a7475ff1a41 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1892,10 +1892,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 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(); /* @@ -1957,6 +1953,11 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 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(); |