scsi: smartpqi: Validate block layer host tag

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Prevent OS crashes when a drive is hot removed during I/O stress test.

The I/O request pointer can be invalid if block layer provides incorrect
multi-queue host tag. This can lead to invalid I/O request pointer
dereference.

Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20230428153712.297638-7-don.brace@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Murthy Bhat 2023-04-28 10:37:06 -05:00 • committed by Martin K. Petersen

parent 80d560d94f

commit 5c9e3c1c52

1 changed files with 2 additions and 1 deletions

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drivers/scsi/smartpqi/smartpqi_init.c

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