Commit 74f82741 authored by Johannes Berg's avatar Johannes Berg

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: default avatarJohannes Berg <>
parent 96998e3a
......@@ -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;
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