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    Subject[PATCH 4.14 092/496] mac80211: fix a possible leak of station stats
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Sara Sharon <sara.sharon@intel.com>

    [ Upstream commit d78d9ee9d40aca4781d2c5334972544601a4c3a2 ]

    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>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    net/mac80211/sta_info.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/net/mac80211/sta_info.c
    +++ b/net/mac80211/sta_info.c
    @@ -439,6 +439,7 @@ 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

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