block: add capacity validation in bdev_add_partition()
authorMin Li <min15.li@samsung.com>
Mon, 19 Jun 2023 09:12:14 +0000 (09:12 +0000)
committerJens Axboe <axboe@kernel.dk>
Tue, 20 Jun 2023 18:50:51 +0000 (12:50 -0600)
commit6d4e80db4ebe76c4a4b6ffb6547cb168275204ef
treeb1cb1f00d6330af5ec353529a2e4a258144a2aa1
parent9a72a02456a839676fe8f220a44ef00951596047
block: add capacity validation in bdev_add_partition()

In the function bdev_add_partition(),there is no check that the start
and end sectors exceed the size of the disk before calling add_partition.
When we call the block's ioctl interface directly to add a partition,
and the capacity of the disk is set to 0 by driver,the command will
continue to execute.

Signed-off-by: Min Li <min15.li@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230619091214.31615-1-min15.li@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/partitions/core.c