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Date:   Sat, 4 Sep 2021 21:49:36 -0700
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Subject: Re: [PATCH -next] [SCSI] Fix NULL pointer dereference in handling for
 passthrough commands
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To:     Laibin Qiu <qiulaibin@huawei.com>, jejb@linux.ibm.com,
        martin.petersen@oracle.com, hare@suse.de
Cc:     linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20210904064534.1919476-1-qiulaibin@huawei.com>
From:   Bart Van Assche <bvanassche@acm.org>
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On 9/3/21 23:45, Laibin Qiu wrote:
> In passthrough path. If the command size for ioctl request from userspace
> is 0. The original process will get cmd_len from cmd->cmnd, but It has
> not been assigned at this time. So it will trigger a NULL pointer BUG.

A Friday night in the middle of the merge window is not the best time to 
post a kernel patch. Anyway:
  Reviewed-by: Bart Van Assche <bvanassche@acm.org>