linux-kernel - [PATCH 3.16 041/217] mac80211: fix memory leak

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Message-ID: <lsq.1461711741.87387761@decadent.org.uk>
Date:	Wed, 27 Apr 2016 01:02:21 +0200
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Sudip Mukherjee" <sudip@...torindia.org>,
	"Johannes Berg" <johannes.berg@...el.com>,
	"Julian Calaby" <julian.calaby@...il.com>
Subject: [PATCH 3.16 041/217] mac80211: fix memory leak

3.16.35-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Sudip Mukherjee <sudip@...torindia.org>

commit ea32f065bd3e3e09f0bcb3042f1664caf6b3e233 upstream.

On error we jumped to the error label and returned the error code but we
missed releasing sinfo.

Fixes: 5fe74014172d ("mac80211: avoid excessive stack usage in sta_info")
Reviewed-by: Julian Calaby <julian.calaby@...il.com>
Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 net/mac80211/sta_info.c | 1 +
 1 file changed, 1 insertion(+)

--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -551,6 +551,7 @@ static int sta_info_insert_finish(struct
 	__cleanup_single_sta(sta);
  out_err:
 	mutex_unlock(&local->sta_mtx);
+	kfree(sinfo);
 	rcu_read_lock();
 	return err;
 }