Re: Potential NULL pointer deference in scsi: scsi_transport_spi

[James Bottomley]

On Mon, 2019-10-07 at 13:30 -0700, Yizhuo Zhai wrote:
> Hi All:
> 
> drivers/scsi/scsi_transport_spi.c:
> 
> Inside function store_spi_transport_period(), dev_to_shost()
> could return NULL

No, it can't.  The device model ensures that a SCSI target or device
must be parented to a host.

James

> , however, the return value shost is not
> checked and get used. This could potentially be unsafe.
>