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Commit 6f64f866 authored by Min Li's avatar Min Li Committed by Jens Axboe
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block: add check that partition length needs to be aligned with block size



Before calling add partition or resize partition, there is no check
on whether the length is aligned with the logical block size.
If the logical block size of the disk is larger than 512 bytes,
then the partition size maybe not the multiple of the logical block size,
and when the last sector is read, bio_truncate() will adjust the bio size,
resulting in an IO error if the size of the read command is smaller than
the logical block size.If integrity data is supported, this will also
result in a null pointer dereference when calling bio_integrity_free.

Cc:  <stable@vger.kernel.org>
Signed-off-by: default avatarMin Li <min15.li@samsung.com>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Reviewed-by: default avatarChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230629142517.121241-1-min15.li@samsung.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5fa3d1a0
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