block: check for valid bio while splitting

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[ Upstream commit fec2e70572 ]

We're already iterating every segment, so check these for a valid IO
lengths at the same time. Individual segment lengths will not be checked
on passthrough commands. The read/write command segments must be sized
to the dma alignment.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Keith Busch 2025-08-27 07:12:51 -07:00 • committed by Greg Kroah-Hartman

parent bac3bc3550

commit fb03efa169

4 changed files with 27 additions and 7 deletions

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2

block/blk-map.c

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21

block/blk-merge.c

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4

include/linux/bio.h

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7

include/linux/blkdev.h

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