[PATCH 5.4 120/222] cfg80211: fix memory leak in cfg80211_cqm_rssi_update

Greg Kroah-Hartman
2020-01-22T13:22:41Z

From: Felix Fietkau <nbd@nbd.name>

commit df16737d438f534d0cc9948c7c5158f1986c5c87 upstream.

The per-tid statistics need to be released after the call to rdev_get_station

Cc: stable@vger.kernel.org
Fixes: 8689c051a201 ("cfg80211: dynamically allocate per-tid stats for station info")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200108170630.33680-2-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/wireless/nl80211.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10834,6 +10834,7 @@ static int cfg80211_cqm_rssi_update(stru
if (err)
return err;

+ cfg80211_sinfo_release_content(&sinfo);
if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
wdev->cqm_config->last_rssi_event_value =
(s8) sinfo.rx_beacon_signal_avg;