diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2011-09-16 13:45:25 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-09-19 16:10:13 -0400 |
| commit | 39193498913f82dd7e484aa908843ca4114c3b0c (patch) | |
| tree | 14951970eaaa7c66a1e6b2f820b5f7cae8d2280a /net | |
| parent | bbb5574224168ef62c8549535c0d0a99e989ecf3 (diff) | |
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: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/nl80211.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 11089541bb0..430b432bc3f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -4527,8 +4527,12 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) wiphy = &rdev->wiphy; - if (info->attrs[NL80211_ATTR_MAC]) + if (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_len = nla_len(info->attrs[NL80211_ATTR_SSID]); |