linux-kernel - Re: [PATCH v3 linux-next] scsi: scsi_debug: fix type in min

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Message-ID: <yq1a6iekmap.fsf@ca-mkp.ca.oracle.com>
Date:   Mon, 08 Nov 2021 23:03:57 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     George Kennedy <george.kennedy@...cle.com>
Cc:     gregkh@...uxfoundation.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 linux-next] scsi: scsi_debug: fix type in min_t to
 avoid stack OOB


George,

> Change min_t() to use type "u32" instead of type "int" to avoid stack
> out of bounds. With min_t() type "int" the values get sign extended
> and the larger value gets used causing stack out of bounds.

Applied to 5.16/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering