iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

wifi: nl80211: acquire wdev mutex earlier in start_ap

Browse Source 
commit c2653990d5729a445296d6d04395be5dea8e282e upstream.

We need to hold the wdev mutex already in order to call
nl80211_parse_tx_bitrate_mask(), so acquire it earlier.

Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johannes Berg 2022-06-27 12:49:03 +02:00 committed by Greg Kroah-Hartman
parent d94f6d8453
commit 07f8ea3000
1 changed files with 13 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
net/wireless/nl80211.c
View File

@ -5747,18 +5747,20 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
goto out;
}
wdev_lock(wdev);
if (info->attrs[NL80211_ATTR_TX_RATES]) {
err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
NL80211_ATTR_TX_RATES,
&params->beacon_rate,
dev, false, link_id);
if (err)
goto out;
goto out_unlock;
err = validate_beacon_tx_rate(rdev, params->chandef.chan->band,
&params->beacon_rate);
if (err)
goto out;
goto out_unlock;
}
if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
@ -5771,19 +5773,19 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
if (!(rdev->wiphy.features &
NL80211_FEATURE_STATIC_SMPS)) {
err = -EINVAL;
goto out;
goto out_unlock;
}
break;
case NL80211_SMPS_DYNAMIC:
if (!(rdev->wiphy.features &
NL80211_FEATURE_DYNAMIC_SMPS)) {
err = -EINVAL;
goto out;
goto out_unlock;
}
break;
default:
err = -EINVAL;
goto out;
goto out_unlock;
}
} else {
params->smps_mode = NL80211_SMPS_OFF;
@ -5792,7 +5794,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params->pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
if (params->pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
err = -EOPNOTSUPP;
goto out;
goto out_unlock;
}
if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
@ -5800,7 +5802,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
if (IS_ERR(params->acl)) {
err = PTR_ERR(params->acl);
params->acl = NULL;
goto out;
goto out_unlock;
}
}
@ -5812,7 +5814,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
info->attrs[NL80211_ATTR_HE_OBSS_PD],
&params->he_obss_pd);
if (err)
goto out;
goto out_unlock;
}
if (info->attrs[NL80211_ATTR_FILS_DISCOVERY]) {
@ -5820,7 +5822,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
info->attrs[NL80211_ATTR_FILS_DISCOVERY],
params);
if (err)
goto out;
goto out_unlock;
}
if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) {
@ -5828,7 +5830,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP],
params);
if (err)
goto out;
goto out_unlock;
}
if (info->attrs[NL80211_ATTR_MBSSID_CONFIG]) {
@ -5839,7 +5841,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params->beacon.mbssid_ies->cnt :
0);
if (err)
goto out;
goto out_unlock;
}
nl80211_calculate_ap_params(params);
@ -5850,7 +5852,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
else if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])
params->flags |= NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT;
wdev_lock(wdev);
if (wdev->conn_owner_nlportid &&
info->attrs[NL80211_ATTR_SOCKET_OWNER] &&
wdev->conn_owner_nlportid != info->snd_portid) {