linux-kernel - Potential NULL pointer deference in scsi: scsi_transport

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Message-ID: <CABvMjLSoa6WfdmvwCCPgAUtc1ZmQ8+14xrDnz5Q8MrpFstMDsg@mail.gmail.com>
Date:   Mon, 7 Oct 2019 13:30:59 -0700
From:   Yizhuo Zhai <yzhai003@....edu>
To:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chengyu Song <csong@...ucr.edu>,
        Zhiyun Qian <zhiyunq@...ucr.edu>
Subject: Potential NULL pointer deference in scsi: scsi_transport_spi

Hi All:

drivers/scsi/scsi_transport_spi.c:

Inside function store_spi_transport_period(), dev_to_shost()
could return NULL, however, the return value shost is not
checked and get used. This could potentially be unsafe.

-- 
Kind Regards,

Yizhuo Zhai

Computer Science, Graduate Student
University of California, Riverside