diff options
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f2c6f77..03f2788 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3589,16 +3589,22 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && sband->ht_cap.ht_supported) { - const u8 *ht_oper_ie; + const u8 *ht_oper_ie, *ht_cap; ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION); if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper)) ht_oper = (void *)(ht_oper_ie + 2); + + ht_cap = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_CAPABILITY); + if (!ht_cap || ht_cap[1] < sizeof(struct ieee80211_ht_cap)) { + ifmgd->flags |= IEEE80211_STA_DISABLE_HT; + ht_oper = NULL; + } } if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && sband->vht_cap.vht_supported) { - const u8 *vht_oper_ie; + const u8 *vht_oper_ie, *vht_cap; vht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_OPERATION); @@ -3611,6 +3617,12 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_DISABLE_HT; ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; } + + vht_cap = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_CAPABILITY); + if (!vht_cap || vht_cap[1] < sizeof(struct ieee80211_vht_cap)) { + ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; + vht_oper = NULL; + } } ifmgd->flags |= ieee80211_determine_chantype(sdata, sband, |