linux-kernel - Re: [PATCH][next] scsi: lpfc: fix pointer defereference before it is null checked issue

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Message-ID: <yq1zh3cwwi5.fsf@ca-mkp.ca.oracle.com>
Date:   Thu, 19 Nov 2020 22:14:01 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Colin King <colin.king@...onical.com>
Cc:     James Smart <james.smart@...adcom.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] scsi: lpfc: fix pointer defereference before it
 is null checked issue


Colin,

> There is a null check on pointer lpfc_cmd after the pointer has been
> dereferenced when pointers rdata and ndlp are initialized at the start
> of the function. Fix this by only assigning rdata and ndlp after the
> pointer lpfc_cmd has been null checked.

Applied to 5.11/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering