Commit 39193498 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

cfg80211: validate IBSS BSSID



The IBSS BSSID is never validated, so an
invalid one might end up being used. Fix
this by rejecting invalid configuration.
Reported-by: default avatarMarek Lindner <lindner_marek@yahoo.de>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bbb55742
...@@ -4527,8 +4527,12 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) ...@@ -4527,8 +4527,12 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
wiphy = &rdev->wiphy; wiphy = &rdev->wiphy;
if (info->attrs[NL80211_ATTR_MAC]) if (info->attrs[NL80211_ATTR_MAC]) {
ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
if (!is_valid_ether_addr(ibss.bssid))
return -EINVAL;
}
ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
......
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