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

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Message-ID: <yq1edtqr2h9.fsf@ca-mkp.ca.oracle.com>
Date:   Fri, 25 Nov 2022 19:20:07 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
Cc:     dgilbert@...erlog.com, error27@...il.com,
        harshit.m.mogalapalli@...il.com,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        "Shin'ichiro Kawasaki" <shinichiro.kawasaki@....com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: scsi_debug: Fix a warning in resp_report_zones()


Harshit,

> As 'alloc_len' is user controlled data, if user tries to allocate memory
> larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack
> trace and messes up dmesg with a warning.

Applied to 6.2/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering