Commit 5c9e3c1c authored by Murthy Bhat's avatar Murthy Bhat Committed by Martin K. Petersen

scsi: smartpqi: Validate block layer host tag

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: default avatarScott Benesh <scott.benesh@microchip.com>
Reviewed-by: default avatarScott Teel <scott.teel@microchip.com>
Reviewed-by: default avatarMike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: default avatarKevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: default avatarMurthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: default avatarDon Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20230428153712.297638-7-don.brace@microchip.comSigned-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 80d560d9
...@@ -708,6 +708,7 @@ static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info * ...@@ -708,6 +708,7 @@ static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *
} }
} }
if (io_request)
pqi_reinit_io_request(io_request); pqi_reinit_io_request(io_request);
return io_request; return io_request;
......
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