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A few fixes:

Browse Source 
* remove a double mutex-unlock
  * fix a leak in an error path
  * NULL pointer check
  * include if_vlan.h where needed
  * avoid RCU list traversal when not under RCU
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Merge tag 'mac80211-for-net-2020-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg

====================
A few fixes:
 * remove a double mutex-unlock
 * fix a leak in an error path
 * NULL pointer check
 * include if_vlan.h where needed
 * avoid RCU list traversal when not under RCU
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-02-24 15:43:38 -08:00
commit 3614d05b5e
4 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/mac80211/mlme.c
View File

@ -2959,7 +2959,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
(auth_transaction == 2 &&
ifmgd->auth_data->expected_transaction == 2)) {
if (!ieee80211_mark_sta_auth(sdata, bssid))
goto out_err;
return; /* ignore frame -- wait for timeout */
} else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE &&
auth_transaction == 2) {
sdata_info(sdata, "SAE peer confirmed\n");
@ -2967,10 +2967,6 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
}
cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
return;
out_err:
mutex_unlock(&sdata->local->sta_mtx);
/* ignore frame -- wait for timeout */
}
#define case_WLAN(type) \

2
net/mac80211/rx.c
View File

@ -4114,7 +4114,7 @@ void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata)
lockdep_assert_held(&local->sta_mtx);
list_for_each_entry_rcu(sta, &local->sta_list, list) {
list_for_each_entry(sta, &local->sta_list, list) {
if (sdata != sta->sdata &&
(!sta->sdata->bss || sta->sdata->bss != sdata->bss))
continue;

5
net/wireless/nl80211.c
View File

@ -20,6 +20,7 @@
#include <linux/netlink.h>
#include <linux/nospec.h>
#include <linux/etherdevice.h>
#include <linux/if_vlan.h>
#include <net/net_namespace.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
@ -4800,8 +4801,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
err = nl80211_parse_he_obss_pd(
info->attrs[NL80211_ATTR_HE_OBSS_PD],
&params.he_obss_pd);
if (err)
return err;
goto out;
}
nl80211_calculate_ap_params(&params);
@ -4823,6 +4823,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
}
wdev_unlock(wdev);
out:
kfree(params.acl);
return err;

2
net/wireless/reg.c
View File

@ -2276,7 +2276,7 @@ static void handle_channel_custom(struct wiphy *wiphy,
break;
}
if (IS_ERR(reg_rule)) {
if (IS_ERR_OR_NULL(reg_rule)) {
pr_debug("Disabling freq %d MHz as custom regd has no rule that fits it\n",
chan->center_freq);
if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) {