scsi: mpi3mr: Synchronize access to ioctl data buffer

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The driver serializes ioctls through a mutex lock but access to the
ioctl data buffer is not guarded by the mutex. This results in multiple
user threads being able to write to the driver's ioctl buffer
simultaneously.

Protect the ioctl buffer with the ioctl mutex.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Ranjan Kumar 2024-11-11 01:14:01 +05:30 • committed by Martin K. Petersen

parent 6050471545

commit 367ac16e5f

1 changed files with 25 additions and 11 deletions

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drivers/scsi/mpi3mr/mpi3mr_app.c

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