Commit 99d4fe95 authored Feb 19, 2018 by Sara Sharon Committed by Greg Kroah-Hartman May 30, 2018

mac80211: fix a possible leak of station stats



[ Upstream commit d78d9ee9d40aca4781d2c5334972544601a4c3a2 ]

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

Fixes: c9c5962b ("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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent f49e3a9a

net/mac80211/sta_info.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -439,6 +439,7 @@ struct sta_info sta_info_alloc(struct ieee80211_sub_if_data sdata,
		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