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cfg80211: reject invalid IBSS BSSIDs in wext compat code

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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>
This commit is contained in:
Johannes Berg 2014-04-09 22:32:16 +02:00
parent 96998e3a2f
commit 74f8274103
1 changed files with 3 additions and 0 deletions
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3
net/wireless/ibss.c
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@ -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;