linux-kernel - Re: [PATCH] scsi: scsi_debug: Fix a warning in resp_write

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Date:   Sat, 26 Nov 2022 03:27:36 +0000
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        Douglas Gilbert <dgilbert@...erlog.com>, error27@...il.com,
        harshit.m.mogalapalli@...il.com, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>
Subject: Re: [PATCH] scsi: scsi_debug: Fix a warning in resp_write_scat()

On Fri, 11 Nov 2022 02:05:25 -0800, Harshit Mogalapalli wrote:

> As 'lbdof_blen' is coming from user, if the size in kzalloc()
> is >= MAX_ORDER then we hit a warning.
> 
> Call trace:
> 
> sg_ioctl
>  sg_ioctl_common
>    scsi_ioctl
>     sg_scsi_ioctl
>      blk_execute_rq
>       blk_mq_sched_insert_request
>        blk_mq_run_hw_queue
>         __blk_mq_delay_run_hw_queue
>          __blk_mq_run_hw_queue
>           blk_mq_sched_dispatch_requests
>            __blk_mq_sched_dispatch_requests
>             blk_mq_dispatch_rq_list
>              scsi_queue_rq
>               scsi_dispatch_cmd
>                scsi_debug_queuecommand
>                 schedule_resp
>                  resp_write_scat
> 
> [...]

Applied to 6.2/scsi-queue, thanks!

[1/1] scsi: scsi_debug: Fix a warning in resp_write_scat()
      https://git.kernel.org/mkp/scsi/c/216e179724c1

-- 
Martin K. Petersen	Oracle Linux Engineering