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| author | Zhong Jinghua <zhongjinghua@huawei.com> | 2023-06-05 15:21:59 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-06-07 16:50:48 +0300 |
| commit | f12bc113ce904777fd6ca003b473b427782b3dde (patch) | |
| tree | dc0959ce6bb5f8d3116c864c844360332e1d6eb6 /block | |
| parent | ddf63516d8d37528dc6834c7f19b55084e956068 (diff) | |
| download | linux-f12bc113ce904777fd6ca003b473b427782b3dde.tar.xz | |
nbd: Add the maximum limit of allocated index in nbd_dev_add
If the index allocated by idr_alloc greater than MINORMASK >> part_shift,
the device number will overflow, resulting in failure to create a block
device.
Fix it by imiting the size of the max allocation.
Signed-off-by: Zhong Jinghua <zhongjinghua@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230605122159.2134384-1-zhongjinghua@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions