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| author | Yu Kuai <yukuai3@huawei.com> | 2021-11-02 09:52:35 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-11-02 10:50:27 -0600 |
| commit | 940c264984fd1457918393c49674f6b39ee16506 (patch) | |
| tree | 47e9ff9067a32c98fa597dbc0f258d7bd7d5f9a4 /mm/slab.c | |
| parent | e4c4871a73944353ea23e319de27ef73ce546623 (diff) | |
| download | linux-940c264984fd1457918393c49674f6b39ee16506.tar.gz linux-940c264984fd1457918393c49674f6b39ee16506.tar.bz2 linux-940c264984fd1457918393c49674f6b39ee16506.zip | |
nbd: fix possible overflow for 'first_minor' in nbd_dev_add()
If 'part_shift' is not zero, then 'index << part_shift' might
overflow to a value that is not greater than '0xfffff', then sysfs
might complains about duplicate creation.
Fixes: b0d9111a2d53 ("nbd: use an idr to keep track of nbd devices")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/20211102015237.2309763-3-yebin10@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm/slab.c')
0 files changed, 0 insertions, 0 deletions