Hello Vladimir Kondratiev, The patch 3a0c52a6d82c: "cfg80211: add 802.11ad (60gHz band) support" from Jul 2, 2012, leads to the following warning: drivers/net/wireless/mac80211_hwsim.c:1841 init_mac80211_hwsim() warn: buffer overflow 'data->bands' 2 <= 2 drivers/net/wireless/mac80211_hwsim.c 1839 1840 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { ^^^^^^^^^^^^^^^^^^^ We raised IEEE80211_NUM_BANDS to 3. 1841 struct ieee80211_supported_band *sband = &data->bands[band]; ^^^^^^^^^^^ This only has 2 elements still. 1842 switch (band) { 1843 case IEEE80211_BAND_2GHZ: It causes a bogus dereference later. regards, dan carpenter -- 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