From d78d9ee9d40aca4781d2c5334972544601a4c3a2 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 19 Feb 2018 14:48:35 +0200
Subject: [PATCH] mac80211: fix a possible leak of station stats
Git-commit: d78d9ee9d40aca4781d2c5334972544601a4c3a2
Patch-mainline: v4.16-rc3
References: bsc#1051510

If sta_info_alloc fails after allocating the per CPU statistics,
they are not properly freed.

Fixes: c9c5962b56c1 ("mac80211: enable collecting station statistics per-CPU")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 net/mac80211/sta_info.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -433,6 +433,7 @@ free_txq:
 	if (sta->sta.txq[0])
 		kfree(to_txq_info(sta->sta.txq[0]));
 free:
+	free_percpu(sta->pcpu_rx_stats);
 #ifdef CONFIG_MAC80211_MESH
 	kfree(sta->mesh);
 #endif