linux-kernel - [PATCH] ocfs2: free 'dummy_sc' in sc_fop

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Message-ID: <594FB0A4.2050105@huawei.com>
Date:   Sun, 25 Jun 2017 20:46:28 +0800
From:   piaojun <piaojun@...wei.com>
To:     <mfasheh@...sity.com>, <jlbec@...lplan.org>
CC:     <linux-kernel@...r.kernel.org>,
        "ocfs2-devel@....oracle.com" <ocfs2-devel@....oracle.com>
Subject: [PATCH] ocfs2: free 'dummy_sc' in sc_fop_release() in case of memory
 leak

'sd->dbg_sock' is malloc in sc_common_open(), but not freed at the end
of sc_fop_release().

Signed-off-by: Jun Piao <piaojun@...wei.com>
---
 fs/ocfs2/cluster/netdebug.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index 564c504..74a21f6 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -426,6 +426,7 @@ static int sc_fop_release(struct inode *inode, struct file *file)
 	struct o2net_sock_container *dummy_sc = sd->dbg_sock;

 	o2net_debug_del_sc(dummy_sc);
+	kfree(dummy_sc);
 	return seq_release_private(inode, file);
 }

--