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block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed

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commit a75ca9303175d36af93c0937dd9b1a6422908b8d upstream.

commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug") added
a kfree() for 'buf' if bio_integrity_add_page() returns '0'. However,
the object will be freed in bio_integrity_free() since 'bio->bi_opf' and
'bio->bi_integrity' were 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>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
yu kuai 2020-06-01 20:38:56 +08:00 • committed by Sasha Levin
commit 81abe6ad4d
1 changed files with 0 additions and 1 deletions
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block/bio-integrity.c
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@ -293,7 +293,6 @@ 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;
}