From: yu kuai <yukuai3@huawei.com>
To: <axboe@kernel.dk>, <ming.lei@redhat.com>,
<martin.petersen@oracle.com>, <wenwen@cs.uga.edu>
Cc: <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<yukuai3@huawei.com>, <yi.zhang@huawei.com>
Subject: [PATCH] block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
Date: Mon, 1 Jun 2020 20:38:56 +0800 [thread overview]
Message-ID: <20200601123856.3895734-1-yukuai3@huawei.com> (raw)
commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug") add a
kree() for 'buf' if bio_integrity_add_page() return '0'. However, the
object will be freed in bio_integrity_free() since 'bio->bi_opf' and
'bio->bi_integrity' was set previousy in bio_integrity_alloc().
Fixes: commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug")
Signed-off-by: yu kuai <yukuai3@huawei.com>
---
block/bio-integrity.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index bf62c25cde8f..ae07dd78e951 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -278,7 +278,6 @@ bool bio_integrity_prep(struct bio *bio)
if (ret == 0) {
printk(KERN_ERR "could not attach integrity payload\n");
- kfree(buf);
status = BLK_STS_RESOURCE;
goto err_end_io;
}
--
2.25.4
next reply other threads:[~2020-06-01 12:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-01 12:38 yu kuai [this message]
2020-06-02 7:37 ` [PATCH] block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed Ming Lei
2020-06-02 8:01 ` Bob Liu
2020-06-02 22:35 ` Martin K. Petersen
2020-06-02 22:44 ` Jens Axboe
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