cfg80211: reject invalid IBSS BSSIDs in wext compat code



Don't allow using a multicast address as the BSSID, that
isn't a valid configuration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 96998e3a

net/wireless/ibss.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -481,6 +481,9 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
		if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
		bssid = NULL;

		if (bssid && !is_valid_ether_addr(bssid))
		return -EINVAL;

		/* both automatic */
		if (!bssid && !wdev->wext.ibss.bssid)
		return 0;