diff options
| author | Murthy Bhat <Murthy.Bhat@microchip.com> | 2023-04-28 10:37:06 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-05-08 07:17:11 -0400 |
| commit | 5c9e3c1c5276cf1f0de47f97eddf48ae1e7fd083 (patch) | |
| tree | cfb50c29e7a7e1f428ada13c2e6897f033f85b0d /drivers/scsi/smartpqi | |
| parent | 80d560d94fa9b28069c62e1a64ae4a03d5f43fbc (diff) | |
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: 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>
Diffstat (limited to 'drivers/scsi/smartpqi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 7fe80bef1a15..f76b5a3e0fd1 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -708,7 +708,8 @@ static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info * } } - pqi_reinit_io_request(io_request); + if (io_request) + pqi_reinit_io_request(io_request); return io_request; } |