Messages in this thread Patch in this message | | | From | "Kirill A. Shutemov" <> | Subject | [PATCHv2] scsi: Fix get_user() in call sg_scsi_ioctl() | Date | Fri, 18 Nov 2022 02:23:04 +0300 |
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get_user() expects the pointer to be pointer-to-simple-variable type, but sic->data is array of 'unsigned char'. It violates get_user() contracts.
Explicitly take pointer to the first element of the array. It matches current behaviour.
This is preparation for fixing sparse warnings caused by Linear Address Masking patchset.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> --- drivers/scsi/scsi_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 2d20da55fb64..fdd47565a311 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -519,7 +519,7 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, return -EFAULT; if (in_len > PAGE_SIZE || out_len > PAGE_SIZE) return -EINVAL; - if (get_user(opcode, sic->data)) + if (get_user(opcode, &sic->data[0])) return -EFAULT; bytes = max(in_len, out_len); -- 2.38.0
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