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wifi: cfg80211: reject bad AP MLD address

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[ Upstream commit 727073ca5e ]

When trying to authenticate, if the AP MLD address isn't
a valid address, mac80211 can throw a warning. Avoid that
by rejecting such addresses.

Fixes: d648c23024 ("wifi: nl80211: support MLO in auth/assoc")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230604120651.89188912bd1d.I8dbc6c8ee0cb766138803eec59508ef4ce477709@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg
2023-06-04 12:11:18 +03:00
committed by Greg Kroah-Hartman
parent 434cf4fbee
commit 8b6ab4bfba
1 changed files with 2 additions and 0 deletions
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2
net/wireless/nl80211.c
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@@ -10542,6 +10542,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_MLD_ADDR]) if (!info->attrs[NL80211_ATTR_MLD_ADDR])
return -EINVAL; return -EINVAL;
req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]); req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]);
if (!is_valid_ether_addr(req.ap_mld_addr))
return -EINVAL;
} }
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,