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wifi: cfg80211: fix MLO connection ownership 

[ Upstream commit 96c0695083 ]

When disconnecting from an MLO connection we need the AP
MLD address, not an arbitrary BSSID. Fix the code to do
that.

Fixes: 9ecff10e82 ("wifi: nl80211: refactor BSS lookup in nl80211_associate()")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.4c1b3b18980e.I008f070c7f3b8e8bde9278101ef9e40706a82902@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 2023-03-01 12:09:33 +02:00 committed by Greg Kroah-Hartman
parent 201a836c23
commit 02c70781aa
1 changed files with 7 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
net/wireless/nl80211.c
View File

@ -10700,8 +10700,7 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
static struct cfg80211_bss *nl80211_assoc_bss(struct cfg80211_registered_device *rdev,
const u8 *ssid, int ssid_len,
struct nlattr **attrs,
const u8 **bssid_out)
struct nlattr **attrs)
{
struct ieee80211_channel *chan;
struct cfg80211_bss *bss;
@ -10728,7 +10727,6 @@ static struct cfg80211_bss *nl80211_assoc_bss(struct cfg80211_registered_device
if (!bss)
return ERR_PTR(-ENOENT);
*bssid_out = bssid;
return bss;
}
@ -10738,7 +10736,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
struct net_device *dev = info->user_ptr[1];
struct cfg80211_assoc_request req = {};
struct nlattr **attrs = NULL;
const u8 *bssid, *ssid;
const u8 *ap_addr, *ssid;
unsigned int link_id;
int err, ssid_len;
@ -10875,6 +10873,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]);
ap_addr = req.ap_mld_addr;
attrs = kzalloc(attrsize, GFP_KERNEL);
if (!attrs)
@ -10900,8 +10899,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
goto free;
}
req.links[link_id].bss =
nl80211_assoc_bss(rdev, ssid, ssid_len, attrs,
&bssid);
nl80211_assoc_bss(rdev, ssid, ssid_len, attrs);
if (IS_ERR(req.links[link_id].bss)) {
err = PTR_ERR(req.links[link_id].bss);
req.links[link_id].bss = NULL;
@ -10952,10 +10950,10 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
if (req.link_id >= 0)
return -EINVAL;
req.bss = nl80211_assoc_bss(rdev, ssid, ssid_len, info->attrs,
&bssid);
req.bss = nl80211_assoc_bss(rdev, ssid, ssid_len, info->attrs);
if (IS_ERR(req.bss))
return PTR_ERR(req.bss);
ap_addr = req.bss->bssid;
}
err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
@ -10968,7 +10966,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->conn_owner_nlportid =
info->snd_portid;
memcpy(dev->ieee80211_ptr->disconnect_bssid,
bssid, ETH_ALEN);
ap_addr, ETH_ALEN);
}
wdev_unlock(dev->ieee80211_ptr);