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@xxxxxxxxx> --- net/mac80211/tx.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 7bb67fa..b07d037 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 +1953,10 @@ 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(); -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
