linux-ext4 - [PATCH v2 02/12] tdb_transaction

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Message-ID: <20210630082724.50838-3-wuguanghao3@huawei.com>
Date:   Wed, 30 Jun 2021 16:27:14 +0800
From:   wuguanghao <wuguanghao3@...wei.com>
To:     <linux-ext4@...r.kernel.org>, <artem.blagodarenko@...il.com>
CC:     <liuzhiqiang26@...wei.com>, <linfeilong@...wei.com>,
        <wuguanghao3@...wei.com>
Subject: [PATCH v2 02/12] tdb_transaction_recover: fix memory leak

In tdb_transaction_recover(), need free data before return,
otherwise it will cause memory leak.

Signed-off-by: Wu Guanghao <wuguanghao3@...wei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@...wei.com>
Reviewed-by: Wu Bo <wubo40@...wei.com>
---
 lib/ext2fs/tdb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/ext2fs/tdb.c b/lib/ext2fs/tdb.c
index 5091b128..0fb94815 100644
--- a/lib/ext2fs/tdb.c
+++ b/lib/ext2fs/tdb.c
@@ -2186,6 +2186,7 @@ int tdb_transaction_recover(struct tdb_context *tdb)
 				   rec.data_len, 0) == -1) {
 		TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction_recover: failed to read recovery data\n"));
 		tdb->ecode = TDB_ERR_IO;
+		free(data);
 		return -1;
 	}
 
-- 
2.19.1