1 files changed, 17 insertions, 4 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1c4f7daea6c7..4ab1ffa9df11 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1188,6 +1188,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
                 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
                     nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
                         goto nla_put_failure;
+                if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
+                    nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+                        goto nla_put_failure;
 
                 (*split_start)++;
                 if (split)
@@ -1731,6 +1734,11 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
                                      IEEE80211_CHAN_DISABLED))
                 return -EINVAL;
 
+        if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
+             chandef->width == NL80211_CHAN_WIDTH_10) &&
+            !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+                return -EINVAL;
+
         return 0;
 }
 
@@ -6280,11 +6288,16 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
         if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
                 return -EINVAL;
 
-        if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
-                return -EINVAL;
-        if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
-            !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
+        switch (ibss.chandef.width) {
+        case NL80211_CHAN_WIDTH_20_NOHT:
+                break;
+        case NL80211_CHAN_WIDTH_20:
+        case NL80211_CHAN_WIDTH_40:
+                if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
+                        break;
+        default:
                 return -EINVAL;
+        }
 
         ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
         ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];